UNIGAS INTERNATIONAL B.V.

The U73 flag is Jarig Bakker’s illustration of 6 January 2006 from Brown 1995. U72 and U331 derive from Josef Nüsse table flags. Rosanoski ultimately considered the colour difference in U72, and presumably the difference in the later scan U331, to result from scanning resolution. Mitchell shows a red funnel band and a yellow flame with a red core; camera effects may also account for apparent colour differences.

U218 is based on photographs of Lady Barbara and Epsilongas, belonging to different pool members. Lady Barbara’s band and flame look red, whereas those of Epsilongas look orange. In both cases the flame extends to the band, unlike the U73 portrayal and the Nüsse flags.