It was a free gift and I know very little about pianos. It hasn't been touched in 40 years and I am not sure if it is worth restoring or not? I look forward to any response.
Circa 1883 Firth Bros were established by the father and uncle of a Mr Firth whom I spoke to some years ago, and who joined the firm in 1924. He says they only ever made 2 pianos! Other Firth pianos were made by Brasted, Kemble, Challen, Armstrong & other small firms, so serial numbers are no help, and datemarks are the best way to proceed. See
http://www.uk-piano.org/piano-gen/datem ... ianos.html
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We have a Firth piano (overstrung upright) which we are looking to sell at the moment. It has a number stamped into the wooden frame, F2687, and serial number 51975 on the ironwork. We'd love to know if it is a Firth, or just with their name on but made by someone else, but have no idea how to find out. Anyone have any ideas?!