I just gave a 7'2" Hardman to a church that I had had rebuilt and used as a teaching piano for about 20 years. I've replaced it with a Steinway. Mine was built in 1889 and played very well, albeit with a new action, and everything. Hardman was started in 1842 in New York. In 1890 they brought in Leopold Peck as a partner and were known as Hardman and Peck thereafter until the depression when they were taken over by Aeolian piano corporatopn. If your piano is just named Hardman, then it may be from the 1880's. Check its serial number.