China 1893 (Shanghai) 2ca red-orange, SGM1China 1893 (Dec) (Shanghai), Chungking Local Post "Pagoda and Junk" 2ca red orange, perforations 12, SGM1. Block of twenty comprising two complete lower rows of ten, margins largely intact except at lower right. Suffers from some characteristic gum toning, which is apparent on face in places, yet represents above average quality for this issue and surprisingly still retains full original gum across entire block of twenty stamps. This is a very rare