Printed cloth, 65mm x 47mm. Produced in facing pairs.
Authorised in September 1957.
A dolphin swimming around an upwards pointing dagger, in yellow and white on a blue background.

3 Port Task Force an Army Emergency Reserve (AER) formation whose role was to operate smaller ports or land stores and equipment over beaches in the event of a nuclear war damaging major ports. (ref: Postwarden)