Details
cover 1911 (29 July) picture postcard to Tsingtau bearing, on picture side) 2c. tied by "SCHATSYKOU/KIAUTSCHOU" c.d.s. (anothe clearer strike on message side); 1912 (1 Oct.) picture postcard bearing 2c. tied by Tsingtau and showing a legible strike of "SCHATSYKOU/KIAUTSCHOU" arrival c.d.s. (month inverted)