To remove or not to remove rust on a luger

[Johnny Peppers]

Hot caustic blue had not come into use before DWM-BKIW was taken over by Mauser, but even after Mauser started to build the P.08 they continued to rust blue the pistols up until mid 1937. Starting about mid year in 1937 Mauser began to blue the P.08 in hot caustic blue.

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[arado]

I use Waxoyl. A British rust proofing for cars. It takes rust off with steel wool and it keeps it off.Plus it nurtures the holster leather and wood grips.No Oxidation. I use it on all my machines, leather, wood. I clean my guns with it after shooting.Gary