Above elbow prosthesis with a leather socket, fibre forearm, heavy metal wrist unit with long lever to operate the flexion and extension of the fingers, by P and K Artificial Limb Co., Belfast, Northern Ireland, 1920-1925. Pringle & Kirk prostheses were made in the North of England for agricultural workers.

Artificial arm invented by T Kirk and Alexander Pringle, and manufactured by the P & K Artificial Limb Company, Belfast, Ireland, c.1920-1925. Known as the P-K arm, the design allowed the wearer to grip with the fingers, which were made of steel springs, by means of a lever set above the wrist and operated by the wearers other hand.