5 Hryven (Mykolaiv Astronomical Observatory) – Ukraine

Ukraine's small coat of arms is set against a stylized globe fragment. Below it, the original observatory building, with its unique round room and stonework, is centered. The inscriptions read "2021" above the coat of arms, "УКРАЇНА" below it, and "П’ЯТЬ ГРИВЕНЬ" in a semicircle beneath the design, with the NBU mint mark to the right.

Astronomical instruments on a smooth background: a meridian circle flanked by the dates 1821 (left) and 2021 (right). Above, on a matt background, the observatory's symbolic center with its coordinates, determined by first director Karl Knorre (left), and the outline of a sextant (right).