Square Piano by Harper, J

This square piano was made by John Harper in Philadelphia, Pennsylvania in 1797. This is the only piano known from Harper’s short career in Philadelphia, unless the Harper of Harper & Fagan was the same person (see piano MI*315684). This piano has a compass of FF-f3, single action (not original), leather hammers, double-strings throughout, tuning pins on the right, no evidence of stops, wood frame, and a mahogany case

Credit: Smithsonian