Here are two generations of Colt pocket pistols. The first is a 1903 Colt Pocket Hammer pistol chambered in 38 ACP. This is one of the "Parallel Rule" guns, in the same family as Henry's 1900 model. This one was made/shipped in 1926.
Next is Colt's Commander chambered in 38 Super. These guns were introduced in 1948 with real production starting in 1949. This particular example was made in 1950. The sights are not original, but make it much easier to shoot! Even after almost 65 years the beautiful Colt Blue is still in great condition!
Here is a picture of both pistols back to back to show how similar in size they are!