A crusader coin! King Baldwin was popularized by the film "Kingdom of Heaven". After the death of Baldwin V, successor and nephew of Baldwin IV 'The Leper', Saladin poised to siege Jerusalem. Out of desperation and necessity, Balian of Ibelin stripped the silver and gold edicule from the Church of the Holy Sepulcher for striking coins to pay those defending the city at it's last stand.
Presumivelmente, esse tipo de moeda foi cunhado para funcionar como uma espécie de dinheiro local para pagar os inúmeros artesãos trazidos ao Vau de Jacob por Balduíno IV e pelos Templários, para completar as defesas do castelo (sem sucesso) antes da chegada de Saladino.
Vadum Jacob – Saladin offered the Franks a huge sum of 100,000 gold coins for the cessation of the works but King Baldwin IV boldly rejected the offer. The Muslims attacked the castle after the failure of the negotiations in April 1179.
Between October 1178 and April 1179 King Baldwin IV moved his seat of government to Le Chastellet (Vadum Iacob) so as to be on hand as both supervisor and protector, setting up a mint to produce special coins with which to pay the massive workforce, and issuing royal charters on site.