As Peter and Orville suggest these are probably Czech/Bohemian in origin. Indeed Egermann have always been a big manufacturer of glass of this type.
As Peter right mentions, there is increasing amounts of this type of cut to clear glass coming out of China, decorated with many traditional western cutting patterns. Recently there have been a number of auctions on eBay featuring this Chinese glass by a US based seller. People may think it is worth having a look, at what is now available.
IMHO, the problem with cut to clear, is that many companies have tended not to develop new patterns. There is good demand for the older stuff, and some manufacturers have been lazy, by relying on old pattern books, which makes them vulnerable to copying, and causes difficulty identifying makers.
Regards,
Marcus