The plum color is usally the result of the bluing salt bath being too cool for the process... like at the end of the run, after many parts have been put in the bath and the fluid has been cooled off slightly... I had a P-38 slide like that once...
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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