Initial Springfield Armory finish as explained in May 20th, 1899, "Scientific American". Note - The receivers and barrels were not assembled, when they received their respective finishes.

(The Refinishing process, as described in 1907, had the receiver lightly polished to remove corrosion and then it was 'browned' in conjunction with the attached barrel. IMHO - It is likely the now polished case-hardened receiver would react to the 'browning' process a bit differently than the barrel steel).

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