Lucky find Biscuit Jar (Kralik Crackle?)

Here is the "art glass" biscuit jar I found this past week at Brimfield. It didn't have a lid so the dealer gave me a great deal. I don't know the maker for sure, so information will be greatly appreciated. It is 5 1/2 inches tall and not quite the same wide. wonderful iridescence. It is a little lighter green than the picture shows, and of course, much lovelier in person than can be captured in a picture. I was really looking for pottery, but it seems all I could find was glass. I overheard one lady say "you don't find what you are looking for" which seemed to be very true. There was a lot of beautiful glass of which I will post more pictures soon.