DSP German Southwest Africa CAPSTADT 18.8.7 \"I\", full strike without the in the year 1907 missing \"0\" on 10 Pfg imperial yacht with beside violet one-line cancel \"P. D. Edward planks. \" as well two-line cancel \"German protectorate\" on commercial used letter, written from I. Engineers the S. S. \"Erna Woermann\", to Hamburg with reverse arrival 9.9.07, superb