WW2 RAF escape and evasion cap/tunic small size button

Scarce small size WW2 RAF escape and evasion cap/tunic button. Developed by escape and evasion expert Christopher Clayton Hutton at MI9, this looks like a standard brass button by J.R.Gaunt but the back can be unscrewed using a fine left handed thread to reveal a carefully concealed compass. This original example appears to have had the rotor tumble from it's mount stopping it indicating North but is otherwise complete and uncommon.

Code: 11453