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Kovels' Antiques & Collectibles Price List 




Insulators

Insulators of glass or pottery have been made for use on telegraph or telephone poles since 1844. Thousands of different styles of insulators have been made. Most common are those of clear or aqua glass; most desirable are the threadless types made from 1850 to 1870.

Click Item to View Prices. These items are part of the online price guide and not for sale.


Name      
Category Pattern or Item Description Year Priced
Insulators Aa
Mossy Blue-green
 1996
Insulators Aa
Side Wire Groove, Double Petticoat, Threaded, Milky Fizzy Aqua
 2005
Insulators Agree
Purple
 1996
Insulators Am Tel Tel Co
No. 121, Dome Emb
 2004
Insulators Am Tel Tel Co
No. 121
 2004
Insulators Am Tel Tel Co
No. 121, Dome Emb, Strong Amber Swirl
 2004
Insulators Am Tel Tel Co
No. 121, Green
 2004
Insulators Am Tel Tel Co
No. 121, Purple
 2004
Insulators American
Green Aqua
 1995
Insulators American
Side Wire Groove, Double Petticoat, Threaded, Yellow Green
 2005
Insulators American Ins Co
Light Blue, Embossed Base
 1998
Insulators American Insurance Co
Green Aqua, Crude
 2001
Insulators American Telegraph Telephone Co
No. 121
 1999
Insulators American Telegraph Telephone Co
No. 121
 2001
Insulators American Telegraph Telephone Co
No. 121, Purple
 1999
Insulators American Telegraph Telephone Co
No. 121, Blue Aqua
 2001
Insulators American Telephone
Dark Green, Amber Swirls
 1996
Insulators American Telephone
No. 110, Purple
 2001
Insulators American Telephone
No. +010, Light Blue Aqua
 2002
Insulators American Telephone
No. 1881, Light Blue Aqua, Embossed Base
 2002
Insulators American Telephone Telegraph
Aqua
 1997
Insulators American Telephone Telegraph
Yellow Green
 1997
Insulators American Telephone Telegraph
Light Jade Green
 1998
Insulators American Telephone Telegraph
Aqua
 1997
Insulators American Telephone Telegraph
Yellow Green
 1997
Insulators American Telephone Telegraph Co
Aqua
 2000
Insulators American Telephone Telegraph Co
Aqua
 2002
Insulators American Telephone Telegraph Co
Aqua, Micro Bubbles
 2000
Insulators American Telephone Telegraph Co
Jade Milk
 2000
Insulators American Telephone Telegraph Co
Purple
 2000
Insulators American Telephone Telegraph Co
Aqua, Small Bubbles
 2002
Insulators Armstrong
Dp1, Light Green
 1996
Insulators Armstrong
Root Beer, Amber
 1996
Insulators Armstrong
No. 122, Clear
 1999
Insulators Armstrong
Whitall Tatum, Salesman Sample, Clear
 2001
Insulators Armstrong
51-c3, Red Amber, Smooth Base
 2003
Insulators Armstrong
No. 217, Root Beer Amber
 2004
Insulators Armstrong
No. 272, Dark Red Amber
 2004
Insulators Armstrong
No. 512u, Saddle Wire Groove, Double Petticoat, Smooth Base, Clear
 2007
Insulators Armstrong
Pedestal Base, Salesman Sample, Clear
 2007
Insulators At T
Aqua
 1995
Insulators At T
Aqua
 1995
Insulators B
No. 103, Deep Blue Aqua
 2004
Insulators B
No. 145, Deep Yellow Green, Slag & Bubbles
 2004
Insulators B G M Co
Purple
 1996
Insulators B O
No. 136, Light Blue
 2004
Insulators B O
No. 136, Light Blue, Embossed
 2004
Insulators B O Railroad
Ice Green, Pat.dec. 19, 1871
 1997
Insulators B O Railroad
Ice Green, Pat.dec. 19, 1871
 1997
Insulators B T C
Aqua, Canada
 1995
Insulators Beehive
Aqua, Swirls, Chunk Of Milk Glass In Side, Montreal Telegraph
 2001
Insulators Beehive
Light Straw Color, Canada
 2001
Insulators Beehive Shape
Lime Green, Hemingray, Large
 2001
Insulators Bell System
New York, Cobalt Blue, Bell Shape
 2001
Insulators
Purple
 1996
Insulators Blobs Inside
Flatdome, Aqua Blue, Bubbles & Swirls, Canada, 1860s, 3 1/2 In.
 2001
Insulators Boston Bottle Works
Aqua, Pat. Oct. 15, 1972, Barrel
 1998
Insulators Brookfield
Aqua
 1996
Insulators Brookfield
Emerald Green, New York
 1996
Insulators Brookfield
Small Spiral, Aqua
 1996
Insulators Brookfield
Cauvet's, Ice Green, 1865
 1997
Insulators Brookfield
No. 31, Blue Aqua
 1997
Insulators Brookfield
B & O, Aqua
 1995
Insulators Brookfield
Dark Green, Amber, Rear Aqua
 1995
Insulators Brookfield
No. 9, Aqua
 1995
Insulators Brookfield
Emerald Green, Yellow Swirls
 1998
Insulators Brookfield
No. 3, Transposition, Dark Blue-aqua
 1998
Insulators Brookfield
No. 9, Blue, Bubbles & Snow
 1998
Insulators Brookfield
No. ++9, Aqua, Light Snow Flurry
 1999
Insulators Brookfield
No. +36, Aqua
 1999
Insulators Brookfield
No. 102, Aqua
 1999
Insulators Brookfield
No. 145, Teal, Amber Streaks
 1999
Insulators Brookfield
X On Top, Threaded Inside
 2000
Insulators Brookfield
No. 100, Yellow Green
 2001
Insulators Brookfield
No. 133, Light Aqua
 2001
Insulators Brookfield
No. 020, Dark Green
 2002
Insulators Brookfield
No. 020, Deep Green Aqua, Amber Twist
 2002
Insulators Brookfield
No. 030, Yellow Green
 2002
Insulators Brookfield
Cauvets, No. 131, Light Aqua
 2004
Insulators Brookfield
No. 121, Aqua, Amber
 2004
Insulators Brookfield
No. 164, Dark Yellow Green
 2004
Insulators Brookfield
No. 20, Side Wire Groove, Single Petticoat, Threaded, Amber, Green Aqua
 2005
Insulators Brookfield
No. 20, Side Wire Groove, Single Petticoat, Threaded, Aqua
 2005
Insulators Brookfield
No. 20, Side Wire Groove, Single Petticoat, Threaded, Dark Aqua
 2005
Insulators Brookfield
No. 31, Side Wire Groove, Single Petticoat, Aqua
 2006
Insulators Brookfield
No. 38, Side Wire Groove, Double Petticoat, Green Aqua
 2006
Insulators Brookfield
No. 31, Side Wire Groove, Single Petticoat, Aqua
 2007
Insulators Brookfield
Side Wire Groove, Single Petticoat, Green Aqua, Amber Swirls
 2007
Insulators Brookfield
W.u.t., Side Wire Groove, Single Petticoat, Amber Swirls
 2007
Insulators Bt Co
No. 102, Royal Purple, Canada
 2004
Insulators Bt Co Of Canada
Montreal, Clear
 2001
Insulators Bt Co Of Canada
No. 102, Royal Purple
 2001
Insulators Bt Co Of Canada
Deep Purple, Diamond On Side
 2002
Insulators Bt Co Of Canada
Purple
 2000
Insulators
Aqua, Canada
 1995
Insulators C D P Tel Co
Light Aqua, Amber Swirls
 1995
Insulators C E W
Aqua
 1996
Insulators C G I
Sage Green
 1996
Insulators C N R
Aqua
 1997
Insulators Cable
No. 2, Light Blue
 1998
Insulators Cable
No. 3, Dark Green, Bubbles
 1998
Insulators Cable
No. 4, Dark Aqua
 1998
Insulators Cable
No. 4, Aqua
 1999
Insulators Cable
No. ++2, Forest Green
 2001
Insulators Cable
No. ++3, Emerald Green, Swirls
 2001
Insulators Cable
No. ++3, Light Blue Aqua
 2001
Insulators Cable
No. 262, Green
 2001
Insulators Cable
No. 2, Aqua, Olive Wisps
 2002
Insulators Cable
No. 3, Blue Aqua, Small Rocks
 2004
Insulators Cable
Cable Top, Threaded, 2 Ears, Emerald Green
 2005
Insulators California
Aqua
 1996
Insulators California
Purple
 1996
Insulators California
Santa Ana, Purple
 1996
Insulators California
Santa Ana, Yellow-green
 1996
Insulators California
Plum Purple
 1995
Insulators California
No. 152, Sage Green
 2004
Insulators California
No. 161, Light Yellow, Purple, Amber, Dome
 2004
Insulators California
No. 161, Plum, Dome Glass
 2004
Insulators California
No. 161, Plum, Streaky, Dome
 2004
Insulators California
No. 166, Sage Green
 2004
Insulators California
No. A007, Side Wire Groove, Single Petticoat, Threaded, Light Purple
 2005
Insulators California
Side Wire Groove, Double Petticoat, Smooth Base, Smoky Light Purple
 2007
Insulators California Electric Works
Purple, Bubbles
 2001
Insulators California Electric Works
Clear
 2001
Insulators California Electric Works
Sage
 2001
Insulators Canada
No. 121, Pleated Skirt, Light Blue, Dome, 1899
 2004
Insulators Canadian National Railway
Green
 1995
Insulators Canadian Pacific
No. 143, Light Green, Purple Swirls
 2001
Insulators
Purple
 2000
Insulators Canadian Pacific Railway
Ice Blue
 1996
Insulators Canadian Pacific Railway
Royal Purple
 1995
Insulators Canadian Pacific Railway Co
Light Aqua, Vertical Ridges
 1997
Insulators Canadian Pacific Railway Co
Light Green
 1997
Insulators Canadian Pacific Railway Co
Medium Green
 1997
Insulators Canadian Pacific Ry Co
Side Wire Groove, Single Petticoat, Slug Embossing, Green
 2006
Insulators Castle
Saddle Wire Groove, Double Petticoat, Strawberry
 2007
Insulators
No. 131, Pat July 225, 1865, Light Aqua
 2004
Insulators Cauvets
No. 131, Pat July 225, 1865
 2004
Insulators
Light Aqua, Amber Swirls
 1995
Insulators Central District Printing Telegraph Co
Light Green
 1997
Insulators Central District Printing Telegraph Co
Light Green
 1997
Insulators
Aqua
 1996
Insulators
Sage Green
 1996
Insulators Chicago
Embossed, Blue
 1996
Insulators Chicago
Embossed, Blush
 1996
Insulators Chicago
Base, Blue Aqua
 1997
Insulators Chicago
Diamond Groove, Dome Embossed, Blue
 1995
Insulators Chicago Diamond
Embossed Shoulder, Blue
 2003
Insulators Chicago Insulating Co
Embossed Base, Aqua
 1996
Insulators Chicago Insulating Co
No. 135, Blue
 2004
Insulators Chicago Insulating Company
No. 135, Blue
 2006
Insulators Civil War Egg
Dark Green
 1995
Insulators
Aqua
 1997
Insulators Columbia
Light Blue
 1996
Insulators Columbia
No. 2, Cable Top, Saddle Wire Groove, 2 Ears, Threaded, Teal Green
 2005
Insulators Compromise Style
Dark Teal Green, Threadless, Cd 729
 2002
Insulators Confederate Egg
Dark Green
 1996
Insulators Confederate Egg
Threadless, Lockport Green, 4 1/4 In.
 2001
Insulators Cutter
Coffin Bottom, Aqua
 2005
Insulators Diamond
Gray
 1996
Insulators Diamond
Ice Green
 1996
Insulators Diamond
Medium Purple
 1996
Insulators Diamond
No. 13, Dark
 1996
Insulators Diamond
Dark Amber
 1995
Insulators Diamond
No. 5, Sca
 1995
Insulators Diamond
Olive Amber
 1995
Insulators Diamond
Side Wire Groove, Single Petticoat, Threaded, Teal Blue
 2005
Insulators Diamond
Side Wire Groove, Single Petticoat, Smooth Base, Wrinkly, Yellow Green
 2006
Insulators Diamond
Side Wire Groove, Single Petticoat, Royal Purple
 2007
Insulators Diamond
Side Wire Groove, Single Petticoat, Smooth Base, Peach
 2007
Insulators Dominion
No. 42, Cornflower Blue
 1996
Insulators Dominion
No. 42, Yellow
 1995
Insulators Dominion
No. 42
 1998
Insulators Dominion
No. 42, Honey Amber
 2000
Insulators Dominion
No. 42, Amber
 2002
Insulators Dominion
No. 10, Straw, Side Wire Groove, Single Petticoat, Threaded, Flat Top
 2005
Insulators Dominion
No. 42, Yellow Amber
 1998
Insulators Dominion
No. 42, Orange Amber
 2000
Insulators Dominion
No. 42, Near Clear ~illus
 2002
Insulators
Golden Yellow Ember
 2001
Insulators Duquesne
Teal Blue
 1996
Insulators Duquesne
No. 121, Ice Blue, 4 Ribs
 2004
Insulators Duquesne
Blue
 2001
Insulators Dwight Pattern
No. 143, Light Aqua
 2004
Insulators E C M
Extended Skirt, Aqua
 1995
Insulators
Emerald Green
 2001
Insulators
Extended Skirt, Aqua
 1995
Insulators Ec M Co
S.f., No. 123, Deep Teal
 2004
Insulators Ec M Co
S.f., No. 123, Deep Teal, Original Metal Stand
 2004
Insulators Electric Supply
Aqua
 1995
Insulators Electrical Construction Maintenance Co
Aqua, Milk & Amber Skirt
 1997
Insulators Electrical Construction Maintenance Co
Aqua, Sheet Metal Mold
 1997
Insulators Electrical Construction Maintenance Co
Aqua, Milk & Amber Skirt
 1997
Insulators Electrical Construction Maintenance Co
Aqua, Sheet Metal Mold
 1997
Insulators
Light Blue-aqua
 1998
Insulators F M Locke
Victor, N.y., Aqua
 1996
Insulators F M Locke
White
 1997
Insulators F M Locke
White
 1995
Insulators Flat Dome
Aqua Blue, Bubbles & Swirls, 1860s, 3 1/2 In.
 2001
Insulators Fm Locke
Victor, N.y., No. 15, Yellow Green, Amber Streaks
 1998
Insulators Fm Locke
Victor, N.y., No. 16, Emerald Green, Yellow Tint
 1998
Insulators Fm Locke
Victor, N.y., Aqua
 1996
Insulators Fm Locke
White
 1995
Insulators Fm Locke
White
 1997
Insulators Fogbowl
Glazeweld, Brown
 1995
Insulators Foster Brothers
Side Wire Groove, Pilgrim Hat, Rounded Dome, Olive Black
 2007
Insulators G T P
Dark Green, Amber In Base
 1996
Insulators Gayner
No. 620, Aqua
 2001
Insulators Gayner
No. 90, Light Aqua
 2003
Insulators Gayner
No. 48-400, Aqua, Black Swirls, Side Wire Groove, Double Petticoat, Threaded
 2005
Insulators Gaynor
No. 90, Side Wire Groove, Single Petticoat, Sharp Drip Points, Blue Aqua
 2006
Insulators Good
No. 16, Side Wire Groove, Single Petticoat, Smooth Base, Aqua
 2007
Insulators Gould
U-683, Skytone & Black
 2002
Insulators Green Aqua
Bits Of Slag, Patented June 17, 1890
 1996
Insulators
Dark Green, Amber In Base
 1996
Insulators H G Co
Aqua, Milk Glass
 1996
Insulators H G Co
Beehive, Milky Swirling
 1996
Insulators H G Co
Cornflower Blue
 1996
Insulators H G Co
Patd May 2nd 1893, Blue Aqua, Inner Outer Drips
 1996
Insulators H G Co
Petticoat, Blue
 1996
Insulators H G Co
Petticoat, Light Apple Green
 1996
Insulators H G Co
Petticoat, Sb, Aqua
 1996
Insulators H G Co
Petticoat, Lime Green
 1995
Insulators H G Co
Royal Purple
 1995
Insulators H G Petticoat
Aqua
 1995
Insulators Hawley
Aqua
 1996
Insulators Hawley
Light Blue
 1997
Insulators Hawley
Aqua
 1995
Insulators Hbr
No. 145, Aqua
 2004
Insulators Hbr
Side Wire Groove, Double Petticoat, Smooth Base, Ice Blue
 2007
Insulators Hemingray
No. +1, High Voltage Triple Petticoat, Patent May 2, 1893
 1996
Insulators Hemingray
No. +3, Cable, Drips, Aqua
 1996
Insulators Hemingray
No. +9, Jade Milk Glass
 1996
Insulators Hemingray
No. 38, Aqua
 1996
Insulators Hemingray
No. 40, Aqua, Amber Swirls
 1996
Insulators Hemingray
No. 42, Green
 1996
Insulators Hemingray
No. 79, Aqua
 1996
Insulators Hemingray
No. D-990, Aqua
 1996
Insulators Hemingray
Patented, Backward 2nd E, Oct 8th, 1907, Aqua
 1996
Insulators Hemingray
No. ++3, Ndp, Aqua
 1997
Insulators Hemingray
No. ++3, Sdp, Aqua
 1997
Insulators Hemingray
No. +11, Aqua
 1997
Insulators Hemingray
No. +12, Ice Blue
 1997
Insulators Hemingray
No. +16
 1997
Insulators Hemingray
No. +18, Blue
 1997
Insulators Hemingray
No. +23, Medium Golden Amber
 1997
Insulators Hemingray
No. +24, Blue
 1997
Insulators Hemingray
No. +40, Blue
 1997
Insulators Hemingray
No. +40, Green
 1997
Insulators Hemingray
No. +42, Light Carnival
 1997
Insulators Hemingray
No. +42, Medium Green
 1997
Insulators Hemingray
No. +43, Green
 1997
Insulators Hemingray
No. +62, Amber Hint
 1997
Insulators Hemingray
No. +63, Bright Ice
 1997
Insulators Hemingray
No. +82, 1871
 1997
Insulators Hemingray
No. 660, Clear, 5/8 In.
 1997
Insulators Hemingray
No. D-512, Ice Blue
 1997
Insulators Hemingray
No. E-1, Light Lemon
 1997
Insulators Hemingray
Petticoat, Light Cornflower
 1997
Insulators Hemingray
Big Mouth, Clear
 1995
Insulators Hemingray
No. 16, Olive Green
 1995
Insulators Hemingray
No. 25, Aqua
 1995
Insulators Hemingray
No. 3, Embossed
 1995
Insulators Hemingray
No. 4, Aqua, 1871
 1995
Insulators Hemingray
No. 4, Green-aqua, Amber Hint
 1995
Insulators Hemingray
No. 40, Green With Amber Swirls
 1995
Insulators Hemingray
No. 40, Olive
 1995
Insulators Hemingray
No. 56, Clear, Large
 1995
Insulators Hemingray
No. 8, Aqua
 1995
Insulators Hemingray
No. 9, 7-up Green
 1995
Insulators Hemingray
No. 9, Dark Green, Small
 1995
Insulators Hemingray
No. 95, Blue
 1995
Insulators Hemingray
No. Ts2, Carnival
 1995
Insulators Hemingray
Telegraph, Green Glass, 1893, Small
 1995
Insulators Hemingray
E-2, Light Yellow
 1998
Insulators Hemingray
No. ++3, Bright Aqua, Cable
 1998
Insulators Hemingray
No. ++3-512, Yellow Amber
 1998
Insulators Hemingray
No. ++5, Dark Aqua, Pat. 1893
 1998
Insulators Hemingray
No. ++9, Aqua, Jade Green Swirl, Pat. 1893
 1998
Insulators Hemingray
No. +12, Aqua Jade, Milk Swirls, Sharp Drip Points
 1998
Insulators Hemingray
No. +12, Dark Olive Green
 1998
Insulators Hemingray
No. +12, Milk Swirls, Aqua
 1998
Insulators Hemingray
No. +19, Orange Amber, Round Drip Points
 1998
Insulators Hemingray
No. +23, Blue
 1998
Insulators Hemingray
No. +38, Aqua
 1998
Insulators Hemingray
No. +50, Blue Aqua
 1998
Insulators Hemingray
No. +54 A & B, Purple
 1998
Insulators Hemingray
No. +55, Blue
 1998
Insulators Hemingray
No. +62, Amber Flashed
 1998
Insulators Hemingray
No. +71, Blue
 1998
Insulators Hemingray
No. 109, Amber
 1998
Insulators Hemingray
Ts-2, Carnival
 1998
Insulators Hemingray
No. 106
 1999
Insulators Hemingray
No. 115, Ice Blue
 1999
Insulators Hemingray
No. 214, 7-up Green
 1999
Insulators Hemingray
No. ++9, Jade Milk, Patent, May 2, 1893
 2000
Insulators Hemingray
No. +19, Green
 2000
Insulators Hemingray
No. +25, Aqua
 2000
Insulators Hemingray
No. 660, Honey Amber
 2000
Insulators Hemingray
Patent May 2 1893, Petticoat, Cobalt Blue
 2000
Insulators Hemingray
No. ++9, Jade Green Milk, 1893
 2001
Insulators Hemingray
No. +14, Clear
 2001
Insulators Hemingray
No. +21, Aqua