32-20 WCF was a very popular caliber in the first generation SAA line. As author Dan Brown put it, "The .32-20 WCF cartridge had good range and accuracy. It is very easy to shoot, as it does not make the revolver buck as the larger calibers do. It also was used as a companion to the Winchester rifle of the .32-20 WCF caliber" ("The 36 Calibers of the Colt Single Action Army," page 190). The accompanying factory letter confirms the 5 1/2 inch barrel in .32-40 caliber and blue finish and states the revolver was shipped on April 4, 1911 to John M. Smyth Co. of Chicago, Illinois. This was a two gun shipment. The barrel has the one-line Colt Hartford address on top and "32 W.C.F." on the left side. The frame has the two-line patent dates marking followed by an encircled Rampant Colt. Matching assembly number is on the rear of the frame and loading gate. Both grip panels are renumbered to the gun. Matching serial numbers are found on the frame, trigger guard, and back strap.