The Pacific War Online Encyclopedia: Hispano-Suiza 20mm Cannon
File:20mm Hispano-Suiza Mk V cannon-IMG 6279-gradient.jpg - Wikimedia Commons
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-Suiza HS.404 - Wikipedia
20MM Hispano Suiza Cannon
20mm Hispano-Suiza Cannon Mk ll | Installed on a Supermarine… | Flickr
Supermarine Spitfire C wing - Hispano 20mm cannons in fairings (two versions) Master -AM-72-004
Spitfire IX - Hispano Cannon Sounds v.2
Hispano-Suiza HS.820 - Wikipedia
Hispano-Suiza HS.404 – Wikipedia
Supermarine Spitfire B wing - Hispano 20mm cannons in fairings Master -AM-32-018