1636 - Jeton 'Frederik van Marselaer, supervisor Brussels canal' (Dugn.3907, vOrden1214, Tas503) - Obv: Arms of Van Marselaer on crossed sword and caduceus / Rev: KZ Hydraulic engineering machine in a tree-rich landscape - bronze 28,5 mm - VF, ex NMV auction Dec. 2017 lot 579