| Ref No | DM1819/42/4 |
| Title | File: 25 years of Penguin Books |
| Description | Invitation responses and letters of thanks for a party celebrating 25 years of Penguin held at the Exotarium in the Zoological Garden in Frankfurt, 21 September 1960. |
| Date | 1960 |
| Format | Manuscript |
| Extent | 1 file |
| Access Conditions | Prior permission must be obtained from Penguin Books Ltd. Please ask Special Collections for further information. |