Russia. Peter I (1699-1725). Rouble 1720, Moscow, Kadashewski mint. Variety: portrait in armour, no rivets, without the engraver's initials. Edge partially w/o letters - minting defect. Silver 26.58 g. Bitkin №319 (R); Diakov3S №920 (R1); Uzdenikov 0588; Petrov 4 rub. Field defects on both sides, patina.