Coloured etching and engraving of The Challenger (1826), other versions of same image (uncoloured): PAD8017 and PAI3111. Also Plate 16 in the volume of marine pictures by Moses "Visit of William the Fourth when Duke of Clarence as Lord High Admiral to Portsmouth in the year 1827 with views of the Russian squadron" published in 1840 by Ackermann & Co.
Inscribed: "The Challenger, commanded by Captain Fitzclarence sailing from Portsmouth with Dispatches for Lisbon, Oct 31. 1827". When William IV was still Duke of Clarence in 1827, he became Lord High Admiral and, in July, to mark his authority, inspected the fleet at Spithead. The following month the Duchess of Clarence viewed the Russian squadron. Captain Fitzclarence was one of the illegitimate children of the Duke of Clarence by his mistress, the actress Dorothea Jordan.