Here's a handmade borosilicate marble measuring .97". A ghostly air trap compression flower that got a little smooshed in the backing process. Looks more like an anemone now. Backing has some nice color with added sparkle, pinwheels, dots and rakes. All glass has been properly annealed to last several lifetimes and comes Ti-signed with a very small "Roberson 2024" on it.