I have two now both we picked up really cheap Under 5 bucks, However They may not wrought a high price they have a fair numbers of collectors. The color here is the most important factor with these, Milk and Amber are pretty common place, Cranberry, Ruby, and Colbalt Fair on top. Which is the case with most glassware. Bottom on the list of glassware is Clear usually, However I've never seen a clear one yet, I would maybe sniff around that angle a bit. Not sure what you will find.