Olduvai Gorge (Tanzania 1991)

28 March (Tanzania ) within release Craters and Caves goes into circulation Stamp Olduvai Gorge face value 12 Tanzanian shilling

Stamp Olduvai Gorge in catalogues
Michel:	Mi:TZ 842

Stamp is square format.

Also in the issue Craters and Caves:

• Stamp - Ngorongoro Crater face value 3;
• Stamp - Kondoa Caves face value 5;
• Stamp - Mount Kilimanjaro´s inner crater face value 9;
• Stamp - Olduvai Gorge face value 12;
• Stamp - Open area of cave face value 10;
• Stamp - Woman seated beside welcome sign face value 10;
• Stamp - People viewing cave, large stalactite face value 10;
• Stamp - Man climbing up to view cave face value 10;
• Souvenir Sheet - Historical Craters and caves - Amboni Caves face value 40;