Located at the base of the vase. Please check out our other Zweifel glass art listings for this week. Most of the items we sell are vintage, antique and previously owned. There are appropriate signs of age and use to be expected. If there is anything further than that we will note it and take photos.Please see photos and ask any questions you may have. WE DO NOT FALSIFY CLAIM FO RMS. The item "Craig Zweifel Hearts & Vines Oval Iridescent Glass Art Vase, Signed & Dated- NR" is in sale since Sunday, March 15, 2020. This item is in the category "Pottery & Glass\Glass\Art Glass\Studio/Handcrafted Glass". The seller is "tj760" and is located in San Diego, California. This item can be shipped worldwide.