cjeep85,
The effort is appreciated.
The mark on the upper-left quadrant of the barrel, the crown-over-letter with the c/RC above it, is diagnostic, as is the similar figure on the receiver.
The Witness Mark is the line stamped across the barrel/receiver juncture at the bottom of the receiver. It can just be seen in your second photo, but a much closer view might be revealing.
This Luger appears to be assembled from parts which were set aside--never completed--in 1918, and made into a gun some time later. There is more to tell here, but the breechblock marking is actually rather crucial to completing the story. A closeup might allow some of the more experienced collectors here to help determine what the figure actually is.
--Dwight
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