Cardboard box, internally padded to fit upper half of steel carrying case, for periscopic bubble aircraft sextant, Type 1A, No. 2053, by Kelvin and Hughes (Aviation) Limited, Barkingside, Essex, England, 1950-1951 Cardboard box, to fit upper half of steel carrying case, for periscopic bubble aircraft sextant 1950-1951
Cardboard box - with attached leather straps - internally padded to fit lower half of steel carrying case, for periscopic bubble aircraft sextant, Type 1A, No. 2053, by Kelvin and Hughes (Aviation) Limited, Barkingside, Essex, England, 1950-1951 Cardboard box, to fit lower half of steel carrying case, for periscopic bubble aircraft sextant 1950-1951