RAF Survival Signalling Mirror,

.Royal Air Force Heliograph Survival Signalling Mirror,Inscription and Marks Foresight is stamped 'crown/ AM/ and '27H / 2102'.Carrying pouch is stamped 'HELIOGRAPH'Square heliograph mirror with handheld foresight. The heliograph mirror is made from highly polished Steel with the foresight attached by a short string. The heliograph is divided into four equal quarters with a target hole in the centre. On the reverse is a yellow sticker printed in black with a diagram and instructions for use. The heliograph is stored in a beige soft cotton pouch tied with cotton tape. Pre 1964