Aperiodic compass used by Sir Alan Cobham
Aperiodic compass used by Sir Alan Cobham on his flights to Australia and South Africa.
P.2 Aperiodic compass used by Sir Alan Cobham on his flights to Australia and South Africa(1935 amd 1926), with four large magnets and damping filaments, by Henry Hughes and Son Limited, United Kingdom, 1920-1925
Aperiodic compass used by Sir Alan Cobham on his flights to Australia and South Africa.
Case for P.2 Aperiodic compass