My New 1917 DWM Luger questions

[BarrelBaggins]

Originally Posted by Doubs

Don is correct that the frame is Erfurt while the receiver is DWM.

The C/RC (Revisions Commission) stamp indicates a part that the factory inspectors found a non-critical fault with but was passed as serviceable by RC inspectors. In the event of failure of such a part, the RC inspector would accept the responsibility. The C/RC is more often seen on Erfurt parts than on DWM. Below is an Erfurt receiver also marked C/RC.

So does that mean the frame was replaced or an Erfurt RC inspector inspected this DWM possibly after WW1?