ハンプトン・ローズ海戦
Three months after the Battle of Hampton Roads, John Ericsson took his design to his native Sweden, and in 1865 the first Swedish monitor was built at Motala Warf in Norrköping, taking the engineer's name. She was followed by 14 more monitors. One of them, "Kanonbåten Sölve", served until 1922 and is today preserved at the Maritiman marine museum in Gothenburg.