Columbia was produced by the Federal Glass Company from 1938-1942, primarily in crystal, with a few pieces available in pink.  The snack plates are in mint condition...no scratches, chips, cracks, or damage of any kind.   They are guaranteed to be original production pieces, they were never reproduced.  Each plate stands 5/8" tall, and is 6" in diameter.  We have other pieces of Depression and Elegant Glass listed, so please check our other auctions.  Shipping is free.  Please feel free to ask any questions, we'll be glad to help you in any way we can.