First amput case. Chungkai ‘43 (Capt Markowitz - with tenon saw), 1943. 
Pen and ink over pencil drawing by Gnr Jack Bridger Chalker (1918-2014), Royal Artillery, 1943.
Two studies of a leg amputated by Captain Jacob Markowitz RAMC, one of an ulcerated leg, the other of a similar foot, showing bone and tissue necrosed, exposing the tibia, possibly associated with ‘Gibbs’.
With note in pencil and pen and ink. 
Signed under one foot at lower left, ‘Chalker’.