I have never heard of the USNCPC so I have no idea if a gun shipped to them is worth more than other M&Ps made during WW II.

If it was shipped to a coastal patrol group in Hawaii why does it have British proof marks?

Is USNCPC for United States Navy Civilian Police Corps? Forum member Lee Barner posted a thread about having such a gun.

Here's what somebody else offered about these models.

"USNCPC marked: 3,000 handguns in the 748000-760000 serial number range; U.S. Naval Civilian Police Corps abbreviation on the backstrap, worth double to triple standard values. Most shipped in 1941."

Still not sure why this gun would have British proofs.

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