This classic 10 Yuan Postage Due stamp was issued during the Republic of China period to collect insufficient postage fees on mail items. The bold red typography with ornate frame design reflects traditional Chinese postal aesthetics of the early–mid 20th century. The inscription indicates official postal tax usage rather than standard postage. Such stamps were affixed by postal authorities upon delivery when additional payment was required. Inflation-era and transitional postal history make these issues especially attractive to thematic and postal history collectors.