2 Heller - William I

Hesse-Cassel's monetary system in this period was a patchwork of locally struck copper and inherited coinage from the Napoleonic occupation, during which Jerome Bonaparte's Kingdom of Westphalia had suppressed native minting entirely. William I resumed issuing in his own name after Jerome's removal in 1813, but the small-denomination copper series took several more years to regularize — hence the extended production window for this type.