20.-Dinar, blue and yellow. The stamp features a knight surrounded by the flags of the participating countries. A panoramic view of Dubrovnic, with a Yugoslavian flag form the background. A total of 80,000 sets exist because the 20 dinar stamp, the rarest of the five values, was printed in that quantity. As the 20 dinar stamp was the key value, few if any were used for postage beyond their use on FDCs and maximum cards.

Designed by Janez Tripin, a graphics designer from Ljubljana.