Abnormal anterior communicating artery drawn at post mortem with detail inset in top right corner. Annotations on the back read "Patient's name 16.7.58 Neuro-surgical ward, abnormal cerebral communicating artery (anterior). Drawing twice normal size (inset four times). Surgeon Mr Johnston, Artist Sheila Lothian". Drawn by one of Dorothy Davison's students.
Signed by the artist, bottom right.