1928 TANGANYIKA SHORT-PAID to CZECHOSLOVAKIA, #30(x2),31 short-pays the 40c UPU 2 ounce letter rate (2 x 20c per oz) by 5c, on cover from Dar-es-Salaam on JAN21,1928 and addressed to Parshnitz, routing via Port-Said (Egypt) on FEB 4th + ship to Brindisi (Italy) + train to Parschitz, the letter either weighed less than 20 grams or the short payment went undetected, no postage due charged, a scarce route and F-VF est ($55+ US) (Image)

CV.