CANTAT 2 - Vickers Oceanics 'Pisces'
| The rescue of Roger Mallinson and Roger Chapman occurred between 29 August and 1 September 1973 after their Vickers Oceanics small submersible Pisces III was trapped on the seabed at a depth of 1,575 ft (480 m), 150 mi (240 km) off Ireland in the Irish Sea. The 76-hour multinational rescue effort resulted in the deepest sub rescue in history. | |
| CANTAT
2. British Post Office commemorative cover. 21 JUN
1974. Signed by Mallinson and Chapman. |
 |
| CANTAT 2. British Post Office
commemorative cancel. 21 JUN 1974. |
 |