Two drawings of the operative field during an operation for a frontal lobectomy with the following labels: adhesions at base of frontal pole, old fracture in orbital plate, and ant. horn of lat. ventricle. Annotations on the back read "Patient's surname op. 20.8.38 Mr Jefferson MRI. Head injury, epilepsy. Excision R frontal lobe" and "56.10.09.09".
Signed by the artist, bottom left corner.