Commodore's broad pendant [56]

Commonwealth flags [48]

Company or house flags [74], [75]

Compasses as a device [6]

Compass signals [136]

Confederate States of America [27], [94], [95]

Congo Free State, flag of [126]

Conquest of Ireland [33]

Consecrated banner [3], [103]

Constantine, Labarum of [2], [3], [51]