1737, Netherlands East Indies (VOC). Copper “West Friesland” Duit Coin. Mint Year: 1737 Denomination: Duit Reference: KM-131. Region: Netherlands East Indies Issuer: United East Indian Company (VOC) Material: Copper Diameter: 21mm Weight: 2.93gm Obverse: Crowned shield of West Friesland. Reverse: Privy mark flanked by two rosettes above cipher of the Dutch East India Company (VOC) and d ...