http://www.potsaa.com/pattern-dinner/

How do I know which model French dinner I read the inscriptions on the bottom?
washer is white with blue clover four leaves. it is not porcelain.
This is the best site I found for determining the value and china and glassware: http://www.replacements.com/ Good luck in your quest for information.
Arcadia Drum Major (Dean) L-Pattern Spaghetti Dinner