Ww2colourised - A female worker is testing a 20 mm cannon at the Aberdeen Proving Ground, 1942. The Hispano-Suiza HS.404 was a French 20 mm autocannon used in a number of air
Hispano Cannon
WW2 German, Soviet, Allied militaria, uniforms, awards, weapons history. War relics forum
20mm hispano projectile that I found. : r/Warthunder
Hispano Mk. II./V & US M1, AN-M2/3 20mm Ammuniton - Historical Data - IL-2 Sturmovik Forum
20 mm slbrhpgr 95, one of the last 20x110 Hispano cartridges produced in Europe - General Ammunition Discussion - International Ammunition Association Web Forum