<div>hi jim</div>
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<div>did you mean 25599 or 255999? i looked in the pierce piano atlas and found 1895-1900 for #25599 and 1985 for 255999, so it sounds to me like it might be between 1895 and 1900. i don't know when standard for pitch was changed.
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<div>maybe this helps, eh?</div>
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<div>daniel carlton</div>