Watch List notes:

Constantine I. AD 307/310-337. AV Solidus (21mm, 4.28 g, 6h). Heraclea mint. Struck circa AD 326-329/30. Diademed head right, gazing upward; diadem decorated with series of parallel lines, each angles left from the top to the bottom of the band / CONSTANTINVS MAX AVG, pair of interlaced laurel wreaths, each with large central jewel; eight-rayed star above; SMH •. RIC VII –, but cf. 497 and 108 (Trier and Nicomedia respectively; for type); cf. Depeyrot, p. 116 (citing an imitative issue of Constans as Caesar with the same mintmark); Biaggi 1961 (this coin). Traces of underlying luster. Choice EF. Apparently unique.

Ex Triton XIX (5 January 2016), lot 619; Numismatica Genevensis SA VIII (24 November 2014), lot 138 (hammer 50,000 CHF); Leo Biaggi de Blasys (1906-1979) Collection.