1 Oz (31.135g). All aficionados of naval history will be thrilled with this fourth release on the Battle of Jutland. The Battle of Jutland was history’s biggest ever naval battle involving 250 ships. The fighting took place in the North Sea on 31 May 1916 between the British Grand Fleet and the Imperial Germany Navy. The coins reverse portrays HMS Iron Duke, the British Grand Fleet flagship which played a significant role at Jutland. The design, which includes The Perth Mints P mintmark, includes a coloured representation of an Iron Duke class dreadnought. Issued as legal tender under the authority of the Government of the Cook Islands, the coin bears the Raphael Maklouf effigy of Her Majesty Queen Elizabeth II and the 2011 year-date on its obverse. Each coin is housed in a presentation display case and superbly illustrated shipper. Each coin is accompanied by a numbered Certificate of Authenticity. Low mintage – limited to only 5,000 pieces. Comes with capsule, certificate of authenticity and the presentation case. We strive for excellent service. Though we normally reply to inquiries as soon as possible, please note that our office is limited on weekends and holidays. Track Page Views With. Auctiva’s FREE Counter. The item “Cook Islands 2011 $1 Famous Naval Battles Jutland 1916 1 Oz Silver Proof Coin” is in sale since Wednesday, July 01, 2015. This item is in the category “Coins & Paper Money\Coins\ World\Australia & Oceania\South Pacific”. The seller is “jvpic” and is located in Berlin. This item can be shipped worldwide.