Maker and Role
W and G Record Processing Company Limited, Manufacturer
-1 Body of the instrument is almost round with extensions on top and bottom. A smaller disc (110 mm in diameter) is attached to the front with a bolt. That small disc has "I.C.A.N." across the middle and number sides around the outside. The part below it has "R.A.A.F." with a crown on the top and "Aerial Dead Reckoning Computer / R.A.A.F. Mk1" on the bottom. There is a number scale surrounding the smaller disc. Also inscribed on this part is "IDENT No.G6B/2087" and "SERIAL No. WG/2972". On the reverse is a metal ring encompassing a translucent piece of plastic. The ring rotates. A rectangular piece of transparent plastic (233 mm x 97 mm) slides through this metal device. Both sides have a series of curved lines labelled with numbers. -2 Black leather case sealed on 3 sides with black stitching. Almost rectangular in shape with the top slightly larger than the bottom. Embossed on the front in white is "Aerial Dead Reckoning Computer/RAAF Mk1 / Made by > W & G < / Melbourne, Australia".
Processed Material/Metal/Alloy/Steel/Stainless Steel
Signature/Marks and Type
Aerial Dead Reckoning Computer/RAAF Mk1/made by > W&G </ Melbourne, Australia. Caption
W and G Record Processing Company Limited. Navigational computer and case, 2004.417. The Museum of Transport and Technology (MOTAT).