Remove the front of the piano. Remove the middle C key complete from it mounting pin. You may find the production date and its full service history written in pencil on the side of that key. A piano tuner told me this after I told him that I had removed all the keys to clean them and I was surprised to see the whole history. It said it was standard practice.
Here is some other information.
The Concord Piano Company was controlled and manufactured by the famous George P. Bent Piano Company of Chicago, and they built pianos for several ...
(SEE ALSO: CROWN, GEORGE P. BENT) The Concord Piano Company was ... and manufactured by the famous George P. Bent Piano Company of Chicago.
Jun 16, 2014 - Question: I have a Concord upright cabinet grand piano, serial ... Albert's reply: Piano values are based on information such as manufacturer, ...
The names of Piano Manufacturers and the date year the company was established in the state of Illinois between 1789 and 1911. ... Company, Chicago. Foley & Williams Piano Manfacturing Company, Chicago ... Concord Company, Chicago.