1 Shi Jin - Fine Grain Stamp Gao County, Sichuan

Chinese county-level grain ration coupons of this type were administrative instruments tied directly to the hukou household registration system — a resident of Gao County could only redeem these locally, making cross-county grain purchase legally impossible without separate provincial coupons. The "fine grain" (细粮) designation is the operative detail: it distinguished wheat flour and rice allocations from coarse grains like corn or sorghum, which carried their own separate coupon series and were considerably less desirable to urban residents.

By 1990 the national grain rationing system was already being dismantled in coastal and more prosperous inland provinces, but Sichuan's county-level administrations continued issuing into the early 1990s. Gao County sits in the Yibin prefecture in southern Sichuan.