of Victoria Handbook for the 1" 4-barrel Nordenfelt gun : 1886 at State Library of Victoria Handbook of the 1" 4 barrel Nordenfelt gun, 1889 at State Library of Victoria Handbook of the 1" 4-barrel Nordenfelt gun, 1894 at State Library of Victoria Handbook for Nordenfelt gun, 1-inch, 2 barrel, Mark I, 1895 at State Library of Victoria Description, Drill, Ammunition. Manual for Victorian Naval Forces 1887, pages 41 - 52 from HMVS Cerberus website 1 inch 4-barrel Nordenfelt Mk III Machine-Gun History, technical details, animations 1 inch 2-barrel Nordenfelt Machine-Gun History, technical details, animations Animation of the inner workings of the 1 inch 4-barrel Nordenfelt, first model mechanism Animation of the inner workings of the 1 inch 2-barrel Nordenfelt, second model mechanism Naval guns of the United Kingdom Victorian-era weapons of the United Kingdom 25 mm artillery