RUANDA URUNDI (1928) Cement factory*. Illustrated postal card (N) of Belgian Congo overprinted for use in Ruanda-Urundi. Sepia photo of cement plant in Lubudi. Card #42 in series of 50.
AVAILABLE AT $60
GERMANY (1966) Salt extraction tower at Heilbad Westernkotten. Postal card (N) with corner illustration.
AVAILABLE AT $15
AUSTRALIA (1917) Bismuth Mine, South Queensland*. Illustrated lettercard (used). LC18-10. File punches in side.
AVAILABLE AT $50