Tank F4 at the Tank Driving School during the special training for the Battle of Cambrai at Wailly, 21 October 1917. Over 400 tanks were gathered for that training.
Deutsche Panzer: German Tanks in World War I (1917-1918) – RZM
WW1 Colourised Photos - German soldiers advancing towards enemy
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How the War Was Won: Command and Technology in the
The Western Front 1917-1918: History of WWI series [illus
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File:The Tank Warfare on the Western Front, 1917-1918 Q7276.jpg
French first world war tank hi-res stock photography and images
The British Army in Italy 1944 NA16889 - PICRYL - Public Domain Media Search Engine Public Domain Search