My understanding is around 1970 as one of the developments of Harold Conklin Jr. for the SD-10 concert grand. The Accu-Just hitch pin subsequently was introduced into the Baldwin grand piano lineup as well as the 6000 vertical. Regards, Rob Kiddell RPT Edmonton, Canada atonal at telusplanet.net > Hello: > > Can someone enlighten me on when Baldwin went to the acu-just hitch > pin design ?? > > Thanks much > Dave > > > DavesPianotuning at earthlink.net > http://www.home.earthlink.net/~davespianotuning/ > 858-776-2516
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