Is it stained, as Steven suggests, or is the glass actually amber? Looking at the rim a some angles, it seems stained, but it's hard to tell.
Ivo's piece reminds me of Galle's mold blown pieces. I'm not suggesting it is, it just reminds me of them. Ivo, do you know the technique the patent was for?
The detail on these piece is so fine, I'd be very impressed if they could be made using the type of mold in the patent Frank showed...BWDIK about pressed glass molds and the feats they can achieve? Not much!
Both interesting pieces, fer sher.