I inherited a set of china that is marked Teresa 4337 Japan. I can't find any history on it and although I have a company looking, have not found spare piecess. Does anyone know anything about this pattern? Perhaps a way to date it? I have had it in my posession for 15 years and recieved it from a 91 year old grandmother. It may be too old and not popular enough to get replacement pieces. Any help out there?