Constructed of bronze, the obverse bearing raised and mirrored profiles of Empress Catherine II (“the Great”) and Tsar Alexander II, set within ornate oval borders, topped by a female figure representing the personification of wisdom, above the coat of arms of the Gorny Institute (Saint Petersburg Mining University) and a date of 21 October, the reverse bearing a raised depiction of the university in high relief and exceptional detail, situated above a date of “1873” and below a dedication in Russian Cyrillic, surrounded by a circular oak leaf wreath, unmarked, measuring 79.10 mm in diameter, in extremely fine condition.