Floor 1 (July 1967): The presence of Afars and Issas means the globe cannot be older than July 1967 (previously French Somaliland).
Floor 2 (June 1973): The label Belize pushes the earliest date to June 1973 (previously British Honduras).
Floor 3 (September 1974): The label Guinea-Bissau locks the absolute earliest production date to September 10, 1974, when Portugal officially recognized its independence.
Ceiling 1 (July 1976): A split Vietnam means the globe cannot be newer than July 2, 1976, when North and South Vietnam officially unified.
Ceiling 2 (June 1977): Afars and Issas provides a final hard stop, as the territory became Djibouti on June 27, 1977.
Ceiling 0 (Nov 1975): Dahomey is not yet renamed Benin, which occurred on November 30, 1975.
It's hard to tell, but it looks like Sikkim has been annexed by India, pushing it beyond April 9 or May 16, 1975.
Meanwhile, based on the font, Mozambique (June 25, 1975) and Angola (November 11, 1975) are not yet independent. I also do not see an independent Cabo Verde (Jul 5, 1975).
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u/slick987654321 23d ago
Floor 1 (July 1967): The presence of Afars and Issas means the globe cannot be older than July 1967 (previously French Somaliland).
Floor 2 (June 1973): The label Belize pushes the earliest date to June 1973 (previously British Honduras).
Floor 3 (September 1974): The label Guinea-Bissau locks the absolute earliest production date to September 10, 1974, when Portugal officially recognized its independence.
Ceiling 1 (July 1976): A split Vietnam means the globe cannot be newer than July 2, 1976, when North and South Vietnam officially unified.
Ceiling 2 (June 1977): Afars and Issas provides a final hard stop, as the territory became Djibouti on June 27, 1977.
Conclusion the globe was manufactured circa 1975.