I had to do that previous post........ I thought it was funny, but seriously here is my go-along….from Holland….marble is slightly larger than 7/8ths and the dish measures 2 inches. The back of the dish says: Delft Blue Hand Painted (the “ed” part of the word “painted” didn’t quite fire in the kiln and is a little obscure), above that is a wreath which looks like olive branches encircling a small letter “e” with a three pointed crown on top. On the bottom are the numbers 855. It was pointed out to me that perhaps this was a boiling stone, to be put in a pot of water to help the water boil faster......in any case, its an interesting peice.....