Q: My mother left me an oval brooch made of blue milk glass. I think it originally belonged to her grandmother, who died in 1924. It’s a series of little blue balls and tiny silver balls. The gold-tone border is impressed “Czechoslovakia” in capital letters on the back. What do you think it’s worth?
A: The country of Czechoslovakia was formed in 1918 when World War I ended. So your brooch was not made before 1918. The country split into the Czech Republic and Slovakia in 1993. Costume jewelry made of Czechoslovakian glass sells for a wide range of prices, depending on design and condition. Your brooch could sell for $20 to $50.