K. D. Field. Posting house No. 10, clear strike of the single circle postmark from 3 / 6 on picture postcard \"Tsingtau - Kiautschou (China) - near the opium reek\", used as fieldpost card to Gr. Dölzig with arrival stamp from 22 / 7 01, additional cancellation framed cancel of 3 lines \"S. B. / OSTAS. EXPED. / I. BAT. 6. INF-REGMTS\"