This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Does anyone know when Steinway started hardening hammers with chemicals? = Many of the old sets from the 20's do not seem to contain hardeners. David Love ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/f4/82/9f/81/attachment.htm ---------------------- multipart/alternative attachment--
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