Drawing of BL 16.25 in calibre 111 ton gun as fitted on HMS Victoria (1885-1893).
Drawing of BL 16.25 in caliber 111-ton gun as fitted on HMS Victoria (1885-1893). Section through battery and turret showing 18-inch armor. Date circa 1885 Source ‘The Royal Navy: a history from the earliest times to the present’, volume VII by William Laird Clowes, published 1903 by S. Low, Marston and company. London. available here https://archive.org/details/royalnavy07clow