Russia
Elizabeth I Mint Error Rouble 1742-CПБ VF Details (Surface Hairlines) NGC, St. Petersburg mint, KM-C19b.3. The most pronounced doubling is seen on the base of bust as "CПБ". The orb on the reverse along with the tail feathers and to the right of the 7 show faint evidence of doubling as well.
Estimate: 300-600 USD