| Level | Item |
| Reference Number (click to see whole series/group) | SMT2/113 |
| Extent | 1 file |
| Title | SECURITIES MANAGEMENT TRUST LTD (SMT): ARMSTRONG WHITWORTH SECURITIES CO LTD |
| Date | 1 Feb 1943 - 20 May 1944 |
| Description | Abandonment of Kadenacy patents. |
| Original Reference | S214_3K |