1 Cash - Quang Trung Thông Bảo, with line

Quang Trung — born Nguyễn Huệ — ruled for barely four years before dying in 1792, likely in his late thirties, possibly from illness or exhaustion following relentless military campaigning. His reign produced some of the most historically charged coinage of Vietnamese history: he had defeated both the Siamese at the Battle of Rạch Gầm-Xoài Mút and a massive Qing Chinese invasion force at the Battle of Đống Đa in 1789, driving 200,000 troops back across the northern border. The cash issues of his brief reign were struck under a state still consolidating control from the Tây Sơn rebellion that had shattered the older Lê dynasty order.

The line variety referenced in Toda 191 distinguishes this piece from otherwise near-identical issues within the Quang Trung series.