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.

https://video.nostr.build/35d267dc5ac71ee66e1f8f1d5c42e7c2b75d646d26bf1e43102540a8e025d924.mp4

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