The mạch (Hán tự: 陌) was a Vietnamese currency unit introduced in 1837 during the Nguyễn dynasty, the mạch represented a value of 60 văn (文, or 60 zinc cash coins) and was itself 1⁄10 of the quán (貫). The mạch currency unit was used on both copper-alloy cash coins and silver ingots, the only series of cash coins to use the character "mạch" (陌) in its inscription was the Tự Đức Bảo Sao (嗣德寶鈔) cash coins, but had been previously used as a denomination (by imperial decree) for larger cash coins under the Minh Mạng Emperor. Unlike smaller coins, cash coins denominated in mạch were usually strung in strings of 10 coins.