Piano Brand
United StatesClarendon
Clarendon was a piano brand of the Haddorff Piano Company of Rockford, Illinois, run in the 1920s as the Clarendon Piano Company, a division whose pianos were built in the Haddorff factory. Haddorff, started by Charles A. Haddorff in the early 1900s, also owned Bush & Gerts and made pianos until around 1960.
- Rockford, Illinois, United States
- No longer in production
Clarendon
Rockford, Illinois
Serial number
Clarendon serial number lookup
How old is your Clarendon piano? Enter its serial number to find the year it was made. Our chart has 8 dated Clarendon serial numbers from 1910 to 1930.
- Upright piano: open the top lid and look at the cast-iron plate near the tuning pins, usually on the left or right side.
- Grand piano: look on the plate near the tuning pins, under the music desk, or on the soundboard beside the plate.
- Ignore model numbers and patent dates: the serial number is usually 4 to 7 digits long.
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