The Frame is 24 1/2 inches by 24 1/2 inches Glass 17 3/4 by 17 3/4 inches and the circle item is about 6 inches round and 1 inch deep

I will cross post it and maybe we will get an answer soon !! Don`t get in a hurry !! Its better to know first !! Will be happy to help you with it !!
I do need the size of it please !!

Oh we have No Museums anywhere near us here in the BC Interior, and we have a very old car and would have to travel a lot of miles. If you would do that for us, great, geee tryed to talk my husband into taking it apart for 2 years. :0)

Do not open it now !!
Do you have a museum close to you ?? If so I would ask at their Asian Art Department or if not,, let me know !! I have a friend who is on a specialized site for this type of thing and I can ask him !! He deals a lot in this type of thing and should be familiar with it !!
These things are a bit out of my area !!

What is it made of ?? The koi fish symbolize good fortune and prosperity, the fu dog or lion is for strength and courage !! Similar symbols/ plaques can be used in feng shui !!