A.I.D. Inspectors

[Richard Farrant]

Rich,

It was the Aeronautical Inspection Directorate, a department of the Air Ministry. Their role was to carry out quality checks and inspect the work for tolerances, etc. I remember my father mentioning them when he was involved in making aircraft parts during the early part of the war. You often find small circular stamp marks on parts with letters and numbers within, this is to signify that they inspected said part.

Richard