Coloured Postcard of H.M.S. Colossus Super Dreadnought Battleship--Launched 9th April, 1910 completed 1911. 20,000 tons S.H.P. 25,000. 21 Knots per hour. Armament, 10 12 inch guns; 16 4 inch guns; 3 torpedo tubes. (SH 061 Ships C - E).flagstaff hill, warrnambool, shipwrecked-coast, flagstaff-hill, flagstaff-hill-maritime-museum, maritime-museum, shipwreck-coast, flagstaff-hill-maritime-village, h.m.s. colossus, super dreadnought battleship, post card, postcard