Austria
Salzburg. Sede Vacante gold Ducat 1772 AU58 NGC, KM436. Little flatness exists on the highpoints as expected and the surfaces are quite acceptable for the grade. There is a bit of peripheral luster on the obverse and plenty of luster on the reverse. There were supposedly only 1,042 of these minted making this a difficult coin to find in general.
Estimate: 1300-1600 USD