"Eine Brücke über den Nkanafluß Tietzen 1931" ("A bridge across the Nkana River [.] Tietzen 1931"). Wooden bridge made of trunks and branches across a wide valley. On the bridge stand 12 African girls carrying calabashes on their heads.; Theodor Tietzen (1893-1973) was a missionary of the Herrnhuter Brüdergemeine. Having married Hildegard Marie Lenz in 1921 and served in South Africa (West) from 1922 to 1927, he moved to East Africa, where he served in Mbozi till 1929 and in Utengule till 1939. In the 1950s he returned to South Africa.