Issued in 1911 for the Chinese Imperial Post Office in Tibet, this rare overprinted stamp was created by surcharging the 1 cent ochre-yellow Coiling Dragon issue (Mi:CN-IM 48) with the value “Three Pies” in English, alongside Chinese characters and local Tibetan script. Designed for use within the Tibetan territory under Chinese administration, the overprint allowed for postal equivalence with the Indian currency system used in adjacent British-controlled regions. The original stamp, engraved with a central dragon motif encircled by bilingual inscriptions, reflects Qing China’s assertion of sovereignty through visual imperial symbolism. The overprint is sharp and well-aligned, reading "分半 / Three Pies / ༩༤༡", bridging linguistic boundaries in a geopolitically complex area. This stamp is mint never hinged, with fresh original gum and wide left margin, making it particularly desirable. It is catalogued as Michel CN-IM-TB 1, Scott CN-TB 1, Yvert TB 1, Stanley Gibbons CN-TB C1, and CSS CN-IM TB1. Estimate "$350 – 450".