Лот 157:
10 000
12 000
Gold medal of 4 ducats, 31,5 mm, AU 13,74g. Ref : Katz 551 (argent): cf. Kull 273
Provenance : NGSA 4, 11-12 / 12/ 2006, lot 389
Vente Helbing 1925, n°1294.