"Stamp ""15c. panther"" of the ""Moyen Congo"" on cover sent from Brazzaville-Plaine September 12th, 1923 to Leopoldville (Kinshasa), insufficiently franked taxe mark of this Moyen Congo ""T"" + ""070"" and paid with TX 66, TX 68 and TX 71 at Kinshasa, Se (Image)

"N° 107 ""10c. Vloors"", on cover sent from Leopoldville September 4th, 1925 to Leopoldville Est (Kinshasa), insufficiently franked and taxed, ""T"" mark in black and paid with TX 66, TX 67 and TX 68 at Kinshasa September 5th, 1923, vf " (Image)

"Unfranked cover sent from Jatville, December 5th, 1943 to Biano, postage due mark ""T"" + ""5,00"" paid at Tenke in December 12th, 1943 with postage due stamps TX 76 and TX 77 (vertical pair) with sheet margin, vf " (Image)

"OBP n° 238 (2x) on cover sent from Boma June 10, 1945 to Leopoldville June 14th, , cachet ""T"" + handwritten note ""1,50"" (postage due) paid with stamps OBP n° 236 (2x) and cancelled Kalina June 14th, 1945, some faults, but scarce, vf/f " (Image)

"Philatelic cover, franked with ""10c. palms"" sent from Elisabethville in 1945 to Elisabethville with ""T"" as taxe and paid on backside with postage due stamps TX 73/75, vf " (Image)