This is from the William Albaugh III and Richard D. Steuart book "The Original Confederate Colt" (1953: Leech and Rigdon/Rigdon-Ansley, pgs. 61-62).
It also has the rounded barrel "shroud" rather than the flat-sided octagonal shroud.
If you are like me, anomalies like this exhibit how other oddities do not fit in with the popular view of 1851 Colts, 1848/1849 Colt Pockets, Leech and Rigdon/Rigdon and Ansley, and others insofar as frames, barrels, backstraps, trigger guards, wood, and screw configuration are concerned.
I think arms producers used just about everything at hand back in the day to market and sell the product, no matter the variation.
Jim
