A 3 3/4" Flat Tumbler made by the Fostoria Glass Company around the early 1900's. The pattern is Captain Kidd-Block.The Tumbler is Ruby Flashed with a six sided star on the bottom. Excellent Condition - No chips, cracks or scratches. Several small spots from the ruby flashing. But overall one of the cleanest pieces I have seen.Diameter is approx. 2 3/4". Buyer to pay shipping and insurance costs. Pay with PayPal.