There is similarity to Empoli Verdi except the base, if 20thcentryglass.com is anything to go by, is completely different. However, I have a few pieces of confirmed Empoli that have pattern continued onto the base.
I would certainly consider Borski Sklo - but I'd like to compare bottoms! The colour is very similar to 'bobble' but yours seems to have a slight amber lustre. Or is that light contamination in the photo?