I find various numbers on my Colt Model 1917 Army. The butt has a serial number, the barrel has a four-digit number when you swing out the cylinder there are more numbers. Which is the correct number to use?
Welcome to the forum. Colt serial#,what you would need for a sale etc. is the number on the frame as you swing out the cylinder. #s on the butt are the Army #. Interestingly S&W model 1917s have the same serial# and Army butt#. That is because they were numbered in a separate seies by S&W,where as the Colt 1917s are numbered as part of their "New Service" large frame revolver.