Colt M1877

It was the first successful US-made double-action cartridge revolver,[2] and was offered from the factory in two basic finishes: nickel-plated or a blued with a case-colored frame.

The shorter-barreled versions without the ejector rod were marketed as "shopkeeper's specials" for use as a concealable pocket pistol.

Outwardly, the Model 1877 shows a striking resemblance to the Colt Single Action Army revolver, however, it is scaled down slightly and much smaller in dimension.

The boxes of these guns near the end of the production run, were printed with a warning that stated "NOT ADAPTED FOR SMOKELESS POWDER".

[5] The "Lightning" was the favored personal weapon of famous Manchester (United Kingdom) Victorian detective, and then head of CID, Jerome Caminada.

Colt "Thunderer" with ejector rod p(above), compared to Colt Single-Action Army (below).