Legality of Cannabis by U.S. Jurisdiction The main article for this category is Ship prefix. Pages in category "Ship prefixes" The following 27 pages are in this category, out of 27 total. This list may not reflect recent changes. Ship prefixC Canadian Coast Guard shipH Her Britannic Majesty's Ship Her Majesty's Armed Vessel Her Majesty's Ship His Britannic Majesty's Ship His Majesty's Army Vessel His Majesty's Australian Ship His Majesty's Canadian Ship His Majesty's New Zealand Ship His Majesty's Ship His Majesty's Yacht HMS/M HMSAS HMSm HMVS Hr.Ms. HSwMSL Long ÉireannachN Navio da República PortuguesaR Royal Mail ShipS Screw steamer Seiner Majestät SchiffU United States Coast Guard Cutter United States Naval Ship United States ShipZ Zr.Ms.