Lot# 9051

franked with nine stamps (including eight Dr. SYS basic stamps overprinted in blue with “Lotsi”), paying a total of 35 fen, tied by Lungchingchang cds dated 38.8.20, routed via Lotsi on Aug 21, and arriving Chungking on Aug 22. The franking correctly pays the inland double registered rate of 35 fen for the period Aug 1 to Dec 3, 1949. Although posted at Lungchingchang, the stamps used bear the “Lotsi” local overprint, representing cross–post office usage of overprinted issues from a different locality. Under regulations, such overprinted stamps were intended for use only within the issuing post office or its designated postal district; however, following the invalidation of the Gold Yuan in 1949, these regional restrictions were gradually lifted. This cover clearly reflects the practical relaxation of postal controls during the transitional period. With a clearly documented route (Lungchingchang - Lotsi - Chungking) and the notable feature of cross-district usage of local overprints, this is an important commercial cover illustrating the transition of the Silver Yuan postal system and local postal operations, offering significant postal history and exhibition value.