It could be due to a spot of high nickel content in the steel. Some Winchester '94s exhibit flaking of this nature, due to a high nickel content in the steel of the receivers. The plum color of the frame around the flaking is also indicative of high nickel content.
This flaking is also found on some Beretta 1934 and 1935 pistols with plum colored slides.
Ron
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I Still Need DWM side plate #49... if anyone runs across a nice one.
What ~Rudyard Kipling~ said...
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