 In 1920 , the US Navy adopted hull numbers for its ships ; Delaware was assigned the hull number BB @-@ 28 . Delaware made only two more cruises , both for midshipmen , under her new identification number : one in 1922 and the second in early 1923 . Delaware sailed to Europe on the second trip , and stopped at a number of ports , including Gibraltar . She returned to the US in August of that year , at which point her crew was reassigned to the newer battleship Colorado . She was then taken to the Boston Navy Yard , where her armaments were removed . The ship was decommissioned in November 1923 and sold to shipbreakers in February 1924 . 
