LIBBEY, Rock Sharpe? Having no Luck. Can you help w pattern/maker ID?

I’ve got loads of this (unknown) pattern. Just spent time on replacements looking at LIBBEY and Rock Sharpe. No luck. Any ideas you can throw my way? This is a water goblet, I think. 6” high. Thanks for your input!

 

Not Rock Sharp, too classic. Several companies used a variation on that stem.

 

Who else might make this type of glass? Willing to do the searching. Thanks!

 

I hate to mention Heisey and their Oxford/Yorktown pattern, two lines, same shape, but Yorktown had a sham, a heavy bowl. Their bowl was wider than the one above. Honestly, I don't know what other companies used the shape, Replacements would be the place to look for similar shapes/stems.

 

generically speaking. "R" often refers to the stem as 'wafer' and the bowl shape as 'square'; tho' not always consistently. the closest I see is maybe Tiffin:
https://www.replacements.com/webquote/tif17395.htm

 

Thank you both! I’ll contin my search tomorrow

 

Tallcakes ID of the stem reduced the number of possible suspects. I searched R for "17395 Tiffin" and was able to find your cutting/pattern. It's named Jefferson

https://www.replacements.com/webquote/tifjef.htm

 

@msgood2shoe WOW! You’re awesome! And @TallCakes it was your help that made the difference! Thank you both so much and enjoy your holiday weekend!