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NASA Columbia, Young, Crippen Pin
Approx. 1 to 1-1/4"
NASA Columbia, Engle, Truly Pin
NASA Columbia, Brand, Overmyer, Allen, Lenior Pin
NASA Columbia, Lousma, Fullerton Pin
NASA Columbia, Lounge, Hilmers, Nelson, Hauck and Covey Pin
NASA Challenger Memorial Pin
Approx. 1-5/8"
NASA Pin
Approx 1"
Shuttle Craft Aircraft Pin
Approx. 1" to 1-1/4"