This original printing set from 1950 commemorates the First National Postal Congress of the People's Republic of China, issued shortly after the establishment of the new regime. The set consists of two mint never hinged values—400 and 800 Chinese dollars—highlighting the state's intent to reorganize and modernize its postal system under centralized socialist control. The stamps depict a winged emblem flanked by posthorn and olive branches, symbolizing communication and peace, printed in deep violet (400 dollars) and slate blue (800 dollars). Issued in Peking, these were produced using typography and bear line perforation of 14, with no watermark. Listed as Scott 1L162–63, Michel CN 82II–83II, Yvert et Tellier CN 864R–865R, and Stanley Gibbons CN 1469R–1470R, they represent the original print (not reprints), which is rarer and more sought after by early PRC specialists. These stamps reflect the consolidation of postal services during the formative years of the PRC, a time marked by nationwide reforms, monetary transition, and propaganda-driven philately. Condition Mint never hinged pair with full original gum, excellent centering and fresh colors. Estimate "$150 – 180".