RUSSIA / MOLDAVIA & WALLACHIA: Pattern coin of 3 Dengi (1771) in copper. Crowned monogram of Catherine II on obverse. Double-headed imperial eagle crowned and stamped with the arms of Wallachia and Moldavia on reverse. Inside slab by NGC "AU DETAILS / OBV DAMAGE". Cert number: 5788148-005. (KM Pn3) & (Bitkin 1262). Extremely rare coin!