The cathode ray tube Plan Position Indicator (PPI) and controls of an H2S radar system being operated by the navigator in a Lancaster bomber, circa 1944.

Operation OYSTER, the daylight attack on the Philips radio and valve works at Emmasingel, Eindhoven, Holland, by No. 2 Group, 6 December 1942. Low-level oblique photograph showing incendiary bombs dropped by Lockheed Venturas bursting on the roof of the Emmasingel lamp and valve factory.

Vertical photographic-reconnaissance aerial of part of Cologne before the area-bombing attacks by aircraft of Bomber Command, showing a 230-acre area of the southern Altstadt. The Neumarkt is seen at centre left and the Mauritius-kirche at lower centre.

Annotated enlargement of part of a vertical photographic-reconnaissance aerial taken over the German Army Research Centre Peenemunde, Usedom Island, Germany, showing the damage to Test Stand VII after the heavy bombing attacks by aircraft of Bomber Command in 1943, initiated by the Polish Home Army intelligence reports.

Original wartime caption: Instruction on rigging.

Original wartime caption: For story see CH.12591 Picture (issued 1944) shows - Armourers preparing some of the 4000 lb. bombs which were used in a recent attack on Leipzig.

Original wartime caption: For story see CH.7484. Picture issued 1942. Through the tail of a bomb - a giant Lancaster ready to take off on a raid.