 The content of pure gold in the 10-ruble coin was, 1 spool and 78.24 shares (7.74235 g).The total weight of the coin was 8.6 g. The coins in denominations of 15 and 7.5 rubles were called, respectively, imperial and semi-imperial.After the monetary reform of 1922-1924, coins with a value of 10 rubles were called “chervonets”, even though in reality they were not.