The case is a nice 10k gold plated with the mark as shown on page 37 for the Complete Price Guide To Watches. The symbol is located at the top right of the page. It is the person holding a shield with "warranted" above & "20 years" below. It shows it to be a 10kt gold filled case, but does not tell the manufacturer. Can anybody tell me the case manufacturers name?

Thanks

Keith

It is a Dueber Watch Case Mfg. Company Canton & Cincinnati Oh & Chicago Il. Filed for trademark on watch cases April 25, 1905. They usually were used earlier than there filing date.

Tom

Thanks Tom