Watch List notes:

Netherlands - Holland Ducaton (Silver Rider) 1758 KM#90.2 with star countermark on the obverse, a variant on the Madura Star countermark, these countermarks are possibly a later addition and some are not typical of the later 18th century period. Countermark Fine, host coin GVF with signs of flan stress on the obverse

Estimate: 250-350 GBP