Discovering the Name of Poznań on Bolesław the Brave’s Coin. A Further Extension of the 1st Die-chain of his Coins / Odkrycie nazwy Poznania na monecie Bolesława Chrobrego. Dalsze rozszerzenie łańcucha 1 połączeń stempli jego monet

Coin hoard discovered in an unknown locality east of Saint Petersburg in Russia in 2019 ( tpq 1008/9), contained three Polish coins issued by Bolesław I the Brave of hitherto unknown types (Mikhel’son 2023). One of them bears the inscription: +POZZNANI, the oldest record of Poznań’s name, the then-capital center (Fig. 1). The reverse of this coin, like the two others, was struck from a die that contains the inscription: AЯЄAHLAT (Figs 1–3). This die was already known from the first die-chain of Bolesław the Brave’s coinage. This makes it possible to include the newly discovered coins in the die-chain. As a consequence, die-chain no. 1 can be expanded, its chronology can be made more precise (ca. 998–1010), and can help establish that the linked die-chains were used in the Poznań mint.