Hello everyone. I run a vintage glassware shop and under my glassware catgory I have a subcategory called "Unknown Maker". These are glasses that I was unable to identify no matter how many web and book searches I have tried. I thought it may be fun and beneficial to the glassware community as well as myself to offer a 15% reusable coupon to my store if you can positively identify any glasses in the unknown maker category. The coupon will not expire and there are no restrictions. 
Happy hunting!
