was an inscription used on different coins made from various metals and alloys during the reign of Emperor Tự Đức. The coinage of Tự Đức saw the introduction of the term văn (文) which was an accounting unit used for copper-alloy cash coins denominating their worth in number of zinc cash coins with a weight of 6 phần.

These coins circulated alongside another series of issued under Emperor Tự Đức, the Tự Đức Bảo Sao.