Four separate drawing of the same specimen labelled A-D. Images A-C are sections of the mid brain and image D is a lateral outline drawing of the pituitary region. Annotations on the back read "Patient's surname 300/54 Manchester University" and "Johnson & Yates Clinico-pathological aspects of pressure changes at the tentorium fig.4".
This image features as figure 4 in the publication R.T. Johnson & P.O. Yates, 'Clinico-pathological aspects of pressure changes at the tentorium', Acta Radiologica 1956 (46) pp.242-9, in which it is described as follows: "Right parietal malignant astrocytoma; section of mid brain at tentorial level".
Signed by the artist in the bottom right corner.