Watch List notes:

BOSNIA, Kingdom. Tvrtko II Tvrtković, 1420-1443. Groš (Silver, 26 mm, 1.42 g, 8 h). S GREGORUS•NAZAZENUS St. Gregory Nazianzus standing facing, holding crozier; lis to right. Rev. DN TUARTCO REX BOSNE••• King's coat of arms within circle. D&D 6.1. Hadžimehmedović 392 (this coin). Rare; well struck and with a lovely old cabinet toning. Good very fine.
From the Collection of a connoisseur.