Watch List notes:

WORLD COINS, Poland, Jan III Sobieski (1629-1674-1696), Gold Commemorative 2-Ducats, 1677, on the reopening of the mint at Kraków, laureate, draped and armoured bust right, IOANNES III D G REX POL M D LIT RUS PR, rev radiant cityscape of Kraków, date below, MDCLXXVII & APR, ALMA URBS CRACOVIA, 36mm, 6.57g (Fr -). Hint of die flaw from between A and N of IOANNES, minor scratch on obverse, otherwise very fine and extremely rare.
In recent years the Kroisos Collection, Stack's, 14 January 2008 (lot 3092) and CNG Triton, 5 January 2016 (lot 2629), have both sold a 3-Ducats coin, whilst Spink, 2 December 2013, sold a 4-Ducats, all from the same dies.

Estimate: £3500-4500