Seven of these revolvers were held by the New Zealand Colonial Defence Force in 1863 and were issued to the famous Forest Rangers at the start of the campaign to push Māori rebels out of the Auckland province.

1722 of July 28, 1855, and when Adams left the Deane brothers to found the London Armoury Company on February 9, 1856, Kerr went with him.

When the company directors decided to focus on rifle production in 1859 Adams left, taking his revolver patents with him.

James D. Bulloch contracted for all the rifles and revolvers the Armoury could produce (and the Confederate government could pay for).

As a result, the London Armoury Company became a major arms supplier to the Confederacy, selling most of the 11,000 Kerr revolvers produced to Huse.

Modern writers often state that the Confederates acclaimed the London Armoury Company's guns (which would include the first-class model 1853 rifle-muskets on the Enfield pattern) as the best weapons delivered to the Confederacy.

The simple action was designed to be easily repairable in the field without requiring model-specific spare parts.

The Kerr had a top strap over the cylinder, which is held in place by a pin that runs into the back of the frame below the hammer.

With this simpler single-action type, the hammer must be manually pulled back until it locks in the full cock position.