The international code flags (a.k.a. signaling flags) used by maritime vessels are comprised of 26 square flags to represent the alpha character; ten pendants to represent the numbers; one answering pendant; and three substitute/repeater pendants.<br /><br />All of these flags are of colors that are easy to distinguish (red, blue, yellow, black, and white) and the patterns are easily discerned from one another. <br /><br />There is one other signaling flag that is internationally recognized on maritime vessels, although it is not included in the list above. This flag hails from Scotland and has its origins in Christianity.<br /><br />What are the two colors of this other international recognized nautical signaling flag, and what is its pattern?
