Between 1885 and 1908 it was believed that the signal had been sent using the 1799 code book, as in 1885 it was pointed out that this had not been replaced until 1808. In 1908 it was discovered that the Admiralty had, in fact, changed the signal code in November 1803, after the 1799 version had been captured by the French, and new code books had been issued to Nelson's fleet at Cadiz in September 1805. As a result, books published between these two dates show the signal using the wrong flags.