Western Pomerania
Boguslaw I (1136-1187) and Casimir I (1134-1180)
Av: Bust in front, with hands raised in prayer gesture, + BOG...ON, Rw: Arch on which a three-towered building, under the arch a tower, legend
silver, 16.3 mm, 0.45 g, high rarity, interesting, undoubtedly West Pomeranian product linked in older literature to the Duchy of Slavonia