Interesting take on the G/N from each of you on the 9301xx gun. The service member was in the medical corps in the CBI theater so (at least to me) it seems less likely he, unlike a line officer, would consider a sidearm a tool of the trade. He simply packed it up after the VJ and took it home. There were many Type 1 RR's sent to the OSS/CB in this range as per SRS so there was opportunity for the barrel to be swapped upon acceptance at the CBI base it wound up at. I own 931459 with a High Standard and fully expected to see a HS in the survivor pistol.
Personally I have thought the Type 1's spent some months in storage after the Feb 1943 RR plant shut down. The Type 1 and II slides overlap and are present from 935k to 955k but I've never seen a Colt barrel in that range either!
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/Ken Hill
"Reason is not automatic. Those that deny it cannot be conquered by it!" Ayn Rand