We must bear in mind that heraldry is a whimsical art full of lore and legend rather than an exact science. It is closer to alchemy and astrology thanto chemistry and astronomy. Herladists often dsiagree as to the origin, shape, symbolism and colour schemes of various coats of arms. That having been said, here is a snippet on Korab that I dredged up: KORAB: The Korab (Ark, Boat, Barge) coat of arms depicts a boat with a tower at its center. Conflicting legends place its origin in Germany, England or even ancient Rome. One version contends that the Roman Emperor Justinian (527-65) granted such emblems to his warriors who hade successfully sailed such ships up the Danube into the lands of the Slavs and/or Huns.