Recording Base for Pelorus Drift Sight Mk IIC US Navy Short Sunderland with airspeed indication from 60-550

with airspeed indication from 60-550 km/h

which registers it on a dial marked in revolutions per minute

1155 receiver in the radio (wireless) comparment

The white main pointer rotates clockwise as the airspeed increases

while slightly dark

Recording Base for Pelorus Drift Sight Mk IIC US Navy Short Sunderland with airspeed indication from 60-550This is a WWII era Recording Base for the aircraft Pelorus Drift Sight Mk IIC as used in aircraft of the US Navy. The drift sight head would be mounted to the center of the base ring. It is in very good condition given its age. It comes with a roll of paper already installed. Measures ~ 7 inches x 5 inches x 3 inches. If you have a Drift Sight Head in your collection, this is an essential companion item.