Individual items and sets

Quality: ✉

1938, 2 covers, Mission Gatti in Belgian Congo, 1st franked with OBP n°168 "10c - Natives issue" and the 2nd with OBP n°197 "5c - National Parck issue", both cancelled by Mission Gatti - Congo Belge cachet Dec. 14, 1938 and sent to Houston / USA; with straight-lined mark "Certified Sent from the Base Camp of the Tenth Gatti African Expedition in the Equitorial Forest", vf