1970's unopened eldon woodburning 4 car wooden kit

This is an unusual ex shop stock, sealed and unopened wooden kit oof 4 different cars by Eldon Woodburning. The cars are each on their own panel and are a Stingray, Lotus, Ferrari and one other which is partly obscured by the instructions. The kit has been designed to be used with Elton's electric pencil which i guess burns the model out of the wood.
Dimensions of each panel: 6 x 6"