Yea, sure to be a challange here, after looking around, Green Crackle Art Glass is everywhere. Just to name a few I did find, Rainbow, Pilgrim, Viking, even Blenko made Green Crackle glass. Of course if it is Blenko you have a prize. Most I saw, even the seller did not know who the maker is. I will snoop a bit more later, I have a real Busy day today, but tonight I can look a bit more.