Space Ship One all four pilots hand-signed 8x10 litho

Scaled Composites promotion 8x10 litho hand-signed by all four Space Ship One testpilots: Mike Melvill, Brian Binnie (both became commercial astronauts on their flights), Doug Shane and Pete Siebold who tragically crashed with Space Ship Two later (Shane died and Siebold survived as the only pilot in that crash).