Back them up! – British Word War Two poster

British poster from the Second World War, published just after the Battle of Britain in 1940, showing Spitfires in combat. 

This is a reproduction printed professionally on high-quality matte paper.

Small prints: A4 (210 × 297 millimetres or 8.27 × 11.69 inches)

Large prints: A3 (297 × 420 millimetres or 11.69 × 16.54 inches)