Watch List notes:

John Comnenus-Ducas. Emperor, 1237-1242. BI trachy (16.6 mm, 0.69 g, 11 h). Brockage strike. Thessalonica mint. Incuse of the reverse / John and St. Demetrius standing facing, holding staff topped with triangular ornament and cross within circle. cf. SBV 2219; DOC 14. VF. 

Ex CNG E-auction 352, lot 623.