China. (Japanese Post Office in China). 1917. Registered envelope written from 'Zijlstra & Co, Tsingtau' addressed to Amsterdam bearing Japanese Post Office in China SG 42, 10s blue (2) tied by Tsingtau date stamp with registered label and bold 'Registered' hand-stamp in violet, endorsed 'via U.S. America' with 'R/ Moji' transit cachet and registration label with 'Opened by Censor/ 4288' censor label applied with Seattle/ Wash and New York transits on reverse and Amsterdam arrival. Lovely item.