[Luke]

The process documented by Gortz & Bryans was dated 1910. At that time it would have been used by DWM only, and it seems likely that it would have been followed for early military DWM Lugers. One would suspect that later Erfurts were also subject to the same process specification.

This was apparently a military specification and was likely imposed on DWM by the German Army as a contract condition. Having worked in the defense electronics industry where equipment was built to military specifications, my experience was that we followed the mil specs to the letter. Failure to do so risked loss of contract and possible legal action.

At any rate, it is reasonable to assume that Lugers made in the heat of late WW-I, Weimar DWM units, and finally Mausers may not have been built to the same process specification. Mil specs are subject to change today, and one would suspect that they may have been changed during the life of the Luger production.