Colt New Service .45 Colt Army Model of 1909

[Sarge7402]

Cool. So, I wonder if that is the basis for current SAAMI spec for 45 Colt, explaining why there is a proper rim to the cartridge nowadays?

The new round for the 1909 would work in the SAA but due to a larger rim only every other chamber could be loaded with them. The SAMMI spec rounds will work in both guns but sometimes the less wide rims will slip past the extractor on the 1909

 

[jnichols2]

I noticed the Colt SN on the frame was the same as the Army SN on the grip.
On the Model 1917, they always seemed to be different.

Any inputs on why they were handled differently. I thought the Model 1917 was a direct derivative of the Colt New Service.

 

[Von der Goltz]

The Colt Model 1909 serial number marked on the butt was the same number as was stamped under the crane on the receiver as well as on the crane. The cylinder latch was marked on the rear with the last 4 digits of the serial number. The stocks were hand numbered inside as well as marked on the butt with the inspectors initials "RAC" (Renaldo A. Carr.). Colt numbered their Model of 1917s with a continuation of their commercial production from about 150,001 to 305001 with serial number stamping on the inside of the frame and the opposing cylinder crane. The "U.S Army Model of 1917" and the Army assigned serial number was stamped on the butt.