Strafgevangenis Ommerschans, huismunt geslagen op last van de Maatschappij van Weldadigheid ter waarde van tweeeneenhalve cent 1818 - 1859

This small, oval-shaped coin, made of lead, was minted in the Netherlands between 1818 and 1859. Created for use at the Strafgevangenis Ommerschans prison, the coin features the initials "OS" and the value "2 1/2" on its opposite sides. This coin provides insight into the unique economic system within the Ommerschans prison, where inmates could use this currency for goods and services within the facility.