Crystal dessert or champagne glasses - maker?

I found a set of these - just wondering if anyone recognizes the pattern and/or knows the maker. I've poked around looking a bit on the internet and found a lot of vaguely similar Libbey stuff but nothing that really matches. Thanks again! (Sorry about my fingers in the pics - the only place I could get the cut pattern to show up well in pics was by holding up to my kitchen light fixture).

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No idea, but they're pretty.

 

Thought I'd bump this up since I have some new info and pics - So I have 10 of these and 8 out of 10 have no markings on them - but I just noticed at the top of the stem - 2 of them have marks - and I can't really make them out - I don't think they're tool marks - but who knows? Very difficult to get pics of. One seems to be inscribed all the way around. The other has a small mark that sort of resembles a crab? Just a guess. None of the others are marked at all on the stem. Also I measured the rims and they are less than .75mm thick - pretty finely crafted.

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I think the marks are just flaws that happened during the molding. Commonly called straw marks.

I'm assuming that you were looking at Libby's Rock Sharpe designs.
Rock Sharpe was it's own company prior to being Libby Rock Sharpe.
http://www.ndga.net/rainbow/1975/75rrg02a.php

 

Can't help ID but they look too small for champagnes, I would think they are cocktails, perfect size for a side car

 

I concur!