First introduced in the British Army in the First World War, formation signs at the division level were intended at first as a security measure to avoid displaying the division's designation to the enemy. They were worn on uniform and displayed on signage. Reintroduced officially in late 1940 in the Second World War, divisional formation signs were much more prevalent on uniforms. This edition of Howard Cole's study shows the state of play with badge design in the immediate post-war period when many changes took place.