It is a piano built by Kawai for Baldwin. There are a few changes but it is a Kawai. Loose pins are common with this piano from that era. Actually I had more problems with the Kawais than I did with the "Howards". If there is room tap the pins. If not turn them back a half turn then back again. They may tighten up because the bushing move the the pin. Watch for loose glue joints like loose hammers and loose lyre joints. Newton
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