Still amazed at the level of knowledge some people have on here. It was a piece of glass with a cow on it !!! How do you do it ??

I didnt notice that leg, thought it was a part of the udder

I can see this one on the Hergiswil site, they dont have the stamp on them and like this one. Could it be a stamp of a maker in the factory ?? I was thinking of using it as a trivet for the hot pans ! Thanks for the help so far chopin-liszt and glassobsessed.