The single-action harp was born. This harp was capable of playing in eight major keys and five minor keys. This was the harp that Marie Antoinette and other 16th-century harpists enjoyed.

The Colt Single Action Army is the most iconic single action revolver of all time. To fire this revolver, you must first manually cock the hammer. Richard Mann. How it Works.

First introduced in 1873, the Colt Single Action Army has officially been around for 150 years. In that time, it has become one of the iconic revolvers of the late 19th century, and it remains one ...

For example, in 1877 Colt introduced a new gun called Frontier (pictured at the top), which was a Single Action Army chambered in the Winchester Repeating Arms Company's.44-40 centerfire cartridge.