Category:XI International Botanical Congress
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Media in category "XI International Botanical Congress"
The following 5 files are in this category, out of 5 total.
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Botanical Congress 6c 1969 issue U.S. stamps.jpg 2,250 × 1,444; 1.26 MB
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Botanical Congress Douglas Fir 6c 1969 issue U.S. stamp.jpg 1,284 × 829; 463 KB
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Botanical Congress Franklinia 6c 1969 issue U.S. stamp.jpg 2,597 × 1,679; 1.19 MB
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Botanical Congress Lady's-slipper 6c 1969 issue U.S. stamp.jpg 1,295 × 813; 326 KB
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Botanical Congress Ocotillo 6c 1969 issue U.S. stamp.jpg 1,314 × 835; 402 KB