Aeronautical Inspectorate Department.

King's crown brass and enamel lapel badge with buttonhole fitting and individual issue number to the reverse. The letters, " AID " on a black enamel ground to the centre of a circlet bearing, " On H.M.Service " surmounted by the crown and a pair of wings. Formed in WW I the purpose of the " AID " was to inspect and report on the construction of aircraft for military service.

Code: 23752