Watch List notes:

‡ Poland, Danzig, John III Sobieski, 2 ducats, 1692, crowned and mantled bust right, titles and legend around, rev., shield with lion supporters, 6.98g (Kopicki 7699; Hutten-Czapski 5292; F. 35), practically as struck (before the obverse die cracked), of excellent workmanship featuring near prooflike surfaces and much original mint bloom, extremely rare

Estimate: 40000 - 60000 GBP