Just left an antique booth where I had been a dealer for 21 years. Am venturing out selling on different sites. Found a group of Griswold enamel ware at a thrift - am not familiar with this line - and am looking for guidance - one in particular is an open casserole marked B1. Was wondering if anyone can give me some direction in finding Griswold by item number. Thanks for whatever help you can provide. Look forward to learning more. Beth