Lancaster, Spitfire, Hurricane, Mosquito, Wellington, Halifax Air retailer Ministry Compass Corrector Bakelite/Brass

Lancaster, Spitfire, Hurricane, Mosquito, Wellington, Halifax Air Ministry Compass Corrector Bakelite/Brass

Wonderful piece of engineering with 3 independent bevel gears and multiple pinion.

Used on all the WW2 aircraft Spitfire, Hurricane, Lancaster, Mosquito etc. for fine compass adjustment .

Located just under the compass retailer.