“Hyperboloid of Revolution of One Sheet- Circular Open Ring Torus”. The Student Publication of the School of Design, Volume 11 Number 1. Printed on card, retained but not bound in card covers, all in slip case. 8.8 inches square. Condition: Slip case somewhat rubbed and knocked at corners, card covers a little rubbed at edges, some soiling to earliest pages at edges and to spine; the overall impression is of a used but well-cared for work.