Most manufacturers that are still in business have a contact form on their websites and will provide information on the age of their pianos. These include Yamaha, Kawai, Bechstein, Bluther:

Most manufacturers that are still in business have a contact form on their websites and will provide information on the age of their pianos. These include Bechstein, Blüthner , Estonia, Feurich, Grotrian, Kawai, Petrof, Schimmel, Walter, Yamaha and Youngchang piano makers.

If your piano is not one of the links above, locate a copy of the Pierce Piano Atlas, by Bob Pierce, edited by Larry Ashley. This book lists information on thousands of piano makers.  

Due to the volume of email we receive, we cannot answer research inquiries or offer appraisals over the web. We suggest you contact a local piano technician who can inspect and evaluate the piano.