DSP line Hamburg West Africa 7.6.10 "XXXIX", steamer "Frieda Woermann", multiple mounted on vertical pair 10 Pfg imperial yacht on large part a commercial cover front "Woermann, Brock & Co., Swakopmund" to the ancestral home, with handwritten Register of the steamer as well "private" and violet two-line cancel "German protectorate", superb (former starting price 200)