Peter I (1682-1725), ducat, 1712, Red mint, g below sleeve, rev., small shield on eagle, 3.49g (Bitkin 32; Diakov p.238, 12), light die rust on reverse, very fine and very rare Ex Galerie des Monnaies auction, Geneva, 22 June 1978, lot 2587.
Estimate: 40000-50000 GBP