Rare early British escape compass Army/RAF WW2

0.622″ (15,8 mm) across x 0.287″ (7,3 mm) high. eight compass directions printed on a cardboard circle, with the four main directions marked in red. These directions can also be read from both sides.The arrow is actually arrow-shaped (instead of most types) and stamped out of blued sheet steel. It is suspended on a pin between both glass lenses.