Scale 1:12. A full hull plank on frame model of a Thames police launch (circa 1950). Model is decked and fully equipped with the number ‘77’ inscribed on deck. At this scale, the model represents a launch measuring 30 feet in length by 8 feet 9 inches in the beam.

It is one of the standard types as built by Tough Brothers of Teddington employing the partially diagonal planking system which produces a lightweight but strong hull. The engine is of sufficient power to provide an efficient speed of 12 knots or over in the tidal waters in which it operates. The cabin and seating has been designed such that it is possible to keep an all round look out whilst on patrol, as well as an open stern area capable for carrying equipment and the recovery of bodies from the water.

Operating from their headquarters at Wapping, London, the river police are responsible for law and order on the river. Previous to 1964, they patrolled the Thames from Erith to Teddington but subsequently this range was changed to cover from Dartford Creek to Staines.