Here for your perusal is my Colt .45DA Model 1909 USN revolver Colt serial number 53002 (1911 production date) USN serial number 1002. Looking forward to shooting it and getting the Colt Archive letter. The Colt New Service Model 1909 revolver was developed by Colt to fill a contract from the U.S. Government for use in the Philippines where a large caliber handgun was needed. The development on the Colt 1911 auto had not been completed and a heavy caliber revolver filled the need for a couple of years. The U.S. Navy and Marine Corps both liked the new 1909 and each ordered a small quantity with the navy being the smallest at only 1100 guns. 

In addition to the USN/Anchor/serial number stamped on butt strap also note the "N" on the back of the cylinder and on the bottom right of frame which denote a US Navy contract revolver.

 

 

 

Here's the Colt Archive shipment letter: