Check the listing for details. C-17A Globemaster Combined Test Force Enamel Pin Edwards AFB McDonnell Douglas. Condition: Used. Listed at 40.00 USD. Original C-17A Globemaster III Combined Test Force lapel pin from the flight test program conducted at Edwards Air Force Base. Round enamel with the C-17A on final approach, gear down, mountains in background. Butterfly clutch back. Vivid colors, excellent condition. The C-17 was a McDonnell Douglas flagship program — from the estate of Don “Curly” Landis, career McDonnell Douglas employee, this was almost certainly acquired directly through his industry connections during the C-17 development and testing phase. ∙ Size: Approx. ¾” ∙ Attachment: Butterfly clutch ∙ Era: Late 1980s–early 1990s Suggested Price: $25–$40 BIN with Best Offer