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Rosanoski thinks the A74 funnel is probably intended to be A470. For the A470 flag, Reed 1891 shows unequal bands, with white the widest and blue the narrowest; Griffin shows a narrower white band.

The Ships List gives the yellow A75 funnel for 1827–1946, followed by A76 with a broad green band for 1946–1962; its illustrations show narrow black tops in both cases. A black-and-white photograph of Hadrian Coast confirms A76. Rosanoski rejects the description of the flag as “blue over white over blue” in Coastal Ships 1967.

The band on A517 can be read as green or blue. Mitchell notes a change to the Coast Line Ltd. funnel at Dundee in 1939, a date Rosanoski questions because the takeover was not until after the war.