#1173 - 4¢ Echo I
Launching of the earth communications satellite Echo I, the first of a series of inflatable, passive communications satellites. Scott 1173 Echo I
| #1173 - 4¢ Echo I | ||
|---|---|---|
| mint $0.75 | Add to Wish List 1173 M | |
| used $0.20 | Add to Wish List 1173 U |
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