John III Ducas (Vatatzes). Emperor of Nicaea, 1222-1254. BI Trachy (22mm, 2.19 g, 6h). Type K. Thessalonica mint. Struck 1249/50-1254?. St Peter standing facing, holding keys / Half-length facing bust of John, holding labarum and globus cruciger. DOC 13; SB 2133. VF, green patina, some roughness. Very rare, none in CoinArchives.
From the Iconodule Collection.