Pennant of a Commodore First Class of the Royal Navy (rank discontinued 1958) This flag was also the command flag for the Commodore of the White Squadron from 1702 to 1864 as described and shown in the book Album des pavillons, guidons, flammes de toutes les puissances maritimes by Napisaola Alexandre Le Gras: published in 1864 on page 4.
File:UK-Navy-OF6-Flag.svg
Alkari