Crusaders, Mytilene (Lordship). Francesco I Gattilusio, AD. 1355-1384
Showing the Byzantine Emperor's tetragrammatic cross as a sign of his vassal status
Bl Denaro
Weight: 0.85 grams Size: 15.92mm
Obverse: Gattilusi coat of arms
Reverse: Palaeologan tetragrammatic cross. Palaeologan cross formed by B's and retrograde B's
Reference: Metcalf 293.