A. With maker's name and serial number of a piano, reference can be made to one of several published 'Piano Atlas' books. We use the Pierce Piano Atlas but there are several others too. They are well researched, and although there may be discrepancies between them, any of them will get a pretty close date for hundreds of brand names. The more obscure brands may not have serial number records available and in several cases, such records have been destroyed by factory fires, etc. Some brand names that are still in existence have web sites and will provide the serial number date records on line. (Take note that the brand name on the key cover or fall board may not match the makers name cast in the plate inside the piano. In this case, use the makers name cast in the plate.)
Note maker's name cast into the plate.