A: Sabin Industries made your dinnerware. They were founded by Samuel Sabin and located in McKeesport, Pa., in 1946. The “Crest-o-Gold” mark was first used in the 1950s and showed they used 22K gold in the decorations. Sabin Industries purchased blank pieces of porcelain that were decorated by Sabin employees. Your pattern is referred to unofficially by collectors and dealers as George and Martha Washington. The pattern was inspired by 18th century French scenes and had no connection to George and Martha. In the mid-1960s, the company was taken over by Chase Enterprises.
Your dishes were made around 1950, and the set would probably be worth $150 to $250.
Address your questions to Anne McCollam, P. O. Box 247, Notre Dame, IN 46556.