Both Form 2s had SN261 listed as most of the other information was redacted as it usually is. In fact, the original FOIA request only resulted in the first Form 2. So we appealed and received the rest. SN261 eventually transferred to a CA SO in the 1950s and was transferred to a C3 in the 1980s.
The current transferee is a C &R license holder. The ATF also asked us to give them more information that this POC M6 is a C&R. All that I can think of is to send them photos of the weapon, concentrating on the nomenclature on the receiver and sending in the copies of the Form 2s that I have. I figure that whatever information as to the manufacturer is listed on their screen when pulling up information.
Since we us the EForm data base, the manufacturer listed is as a Form 2 registration. I added additional information to the Form 4, describing the nomenclature and such on the weapon. I understand that the record keeping at the NFA, especially in the NFRTR is not 100% accurate. How knows what prompted that Form 2 registration would be listed on our Form 3 and the NFA cannot verify that POC is the manufacturer or it was not originally entered as such in 1952.
I currently have the Mac Man book as I have used that as a reference in locating date ranges for the manufacturing of the Ingram Model 6 45acp Police Ordnance Company of Los Angeles CA.