comprising both unused and used examples of 30c Green, 50c Red, and 100c Blue.

franked with three East China Liberated Area stamps, totaling 60 yuan, the correct international regular letter rate. Mailed barely half a month after the liberation of Shanghai, this aerogramme was posted during the transitional phase when the postal system of the East China Liberated Area had just been taken over but international airmail service had not yet been fully restored. Although nominally under the administration of the new People’s Post, postal operations at that time largely continued under the former ROC system to maintain overseas correspondence. The aerogramme was first sent from Kashing to Shanghai, then forwarded to Tokyo by the China National Aviation Corporation (CNAC), illustrating the integration of postal and civil aviation systems during the early phase of the new regime. Faint arrival markings dated late June confirm its transmission by air. This rare international aerogramme from the immediate post-liberation period not only shows accurate postage and clear chronological postal markings but also vividly documents the transitional operation of the East China postal system and the continuity of China’s foreign mail service. It represents an important postal artifact for studying the transformation of China’s postal system around the time of the founding of the PRC, with significant philatelic, airmail, and historical value.

this airmail cover was posted from Shanghai to Geneva and represents one of the earliest recorded examples of correct rate usage under the unified postal system of PRC, franked with East China Liberated Area stamps x 10, totaling 10,800 yuan, comprising 1,800 yuan for the first 20g of surface postage and an airmail surcharge of 9,000 yuan per 10g. The cover was canceled “Shanghai 50.2.6” cds and with “Canton 50.2.11” transit on reverse. It was routed via Canton and Hong Kong before onward air transmission to Europe. This item was mailed only four months after the founding of the PRC, during the early unification of postal tariffs nationwide. It provides tangible evidence of the establishment of a standardized international airmail rate system. A historically significant and well-preserved example with complete postal markings, of strong research and exhibition value.

airmail cover sent from Shanghai to Wellington, franked with seven East China Liberated Area stamps, totaling 10,800 yuan (RMB), tied by “Shanghai 50.2.7” cds. Although the cover bears no Canton transit marking, the mail was most likely routed via Hong Kong, then conveyed by Qantas Airways through Sydney to New Zealand. This cover was posted during the First Postal Tariff Period of the RMB postal system (1-9 February 1950) , a very short period lasting only nine days, during which surviving covers are extremely scarce. The postage was correctly paid according to the official rate: international surface letter (first 20 grams) 1,800 yuan, plus airmail surcharge for “Other Countries” (non-Asian destinations) 9,000 yuan per 10 grams, totaling 10,800 yuan. This short-lived rate period had long been misdated as beginning on 10 February, but this cover provides conclusive evidence of the correct early date for the First Postal Tariff Period. It also reflects the transitional phase of the early RMB postal system, when Hong Kong played a vital role as the main international airmail transit hub for the newly established People’s Republic of China. A precisely rated and clearly postmarked cover, in excellent preservation, it stands as a rare and important postal history example of early PRC airmail to Oceania, offering significant value for both research and exhibition.

airmail cover sent from Tientsin to Jacksonville, North Carolina, franked with a mixed franking of four stamps comprising North China Liberated Area and R series issues, totaling 10,800 yuan (RMB), tied by “Tientsin 50.2.9” cds and “Canton 50.2.18” transit on reverse. The mail was routed via Canton and Hong Kong, then carried by Pan American Airways (PAA) on its trans-Pacific route to the United States. This cover was posted during the First Postal Tariff Period (1-9 February 1950) under the newly unified RMB postal system, and represents an actual usage on the final day of this brief nine-day postal period. Historical records indicate that even in major cities such as Tientsin, international airmail service officially commenced only on 4 February 1950, making surviving covers from this period extremely scarce. The postage was correctly paid according to the prescribed rate for “Other Countries” (non-Asian destinations): international surface letter (first 20 grams) 1,800 yuan, plus airmail surcharge 9,000 yuan per 10 grams, totaling 10,800 yuan. This is one of only five recorded covers sent on the last day of the First Postal Tariff Period. It vividly illustrates the operational stage of the newly established RMB postal rate system, as well as Hong Kong’s key role as a transit hub for early PRC international airmail to the Americas. A rare and highly significant postal history artifact from the formative phase of the People’s Republic’s postal service, of great importance for study and exhibition.