10 penny imperial yacht 2 values on misdirected mailing from Tsingtau to Omaruru (DSWA), arrival and on route passing cancellation from \"OMARURU\", \"KEETMANSHOOP\" and multiple \"Windhoek b\", three-line cancel \"consignee even with Aid the official List not ascertainable post office Windhoek\" and one-line cancel \"return\", arrival postmark \"TSINGTAU b\", running time 11 months, for the exhausting postal route in rare good condition, in this kind postal history very interesting and rare