Antique Marconi bakelite multimeter

Description:

Very rare, fully working Marconi designed GEC selectest electrical testing multimeter. Bakelite from 1930's. Used by my late father in WW2 on Lancaster bombers in Rekyavik during WW2 and in his later career. Never seen or heard of another working example online. Also 2 NCB meters from 70's 1 in leather case. Used in Cardowan colliery again by my father. Nice bit of history for a collector. No idea of true value of the old multimeter.