Stamps, X-15 Rocket Plane design
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Antigua
postage1990, Jun 11 space achievements (1990) unwmk p. 14
| - | 45c | multi | X-15 Rocket Plane | .30–1.00 | .30–1.00 |
Micronesia
1989, Jul 20 20th Anniversary of the First Manned Landing on the Moon issue (no perf info)
| - | 25c | multi | X-15 Rocket Plane |
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