IconClass Codes:
46C232: Rowing-boat, canoe, etc.
46C223: Harbour
25I12: Prospect of city, town panorama, silhouette of city
45(+3): Warfare; military affairs (+ naval force)
44A3(+2)(SCOTLAND): Flag, colours (as symbol of the state, etc.) (+ nation; national)
45K13(+73): Fortress (+ warfare ~ water, along a river, on a shore)