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
![Spitfire Mk.Vc - Hispano 20mm cannons in fairings and Browning .303 barrel tips (for Eduard) Master -AM-48-166 Spitfire Mk.Vc - Hispano 20mm cannons in fairings and Browning .303 barrel tips (for Eduard) Master -AM-48-166](https://www.super-hobby.at/zdjecia/7/7/6/42267_am-48-166-ins.jpg)
Spitfire Mk.Vc - Hispano 20mm cannons in fairings and Browning .303 barrel tips (for Eduard) Master -AM-48-166
![20 mm slbrhpgr 95, one of the last 20x110 Hispano cartridges produced in Europe - General Ammunition Discussion - International Ammunition Association Web Forum 20 mm slbrhpgr 95, one of the last 20x110 Hispano cartridges produced in Europe - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/original/3X/f/0/f085e9d93ffe84c5efde88b17e87ad633b8020fe.jpeg)