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1941（1.9） Sun Yat-sen 1c stationery card sent double registered in Tientsin locally，bearing 1st London Print Sun Yat-sen 2c and Hong Kong Print Martyr 25c ovpt. Hopei，totally 28c，with（2.9） arrival dater，plus registration label，nice condition. This Sun Yat-sen 1c stationery card bearing Puppet North China stamps was collection of a late senior philatelist in Tientsin，did not show up at public auctions for over 10 years，and is so far the only existing example，highly rare.