1864 Benoît Paul Émile Clapeyron French engineer physicist thermodynamics steam
Heather Couper Astronomer & Broadcaster Original Hand Signed Benham FDC Cover
COLONEL BORIS VOLYNOV - AUTOGRAPHED SIGNED PHOTOGRAPH Russian Cosmonaut
Astronaut David C. Leestma Original Signed NASA Portrait Space Shuttle STS-41G
Original Tim Peake NASA Astronaut Signed Autograph Photo Card Postcard Space
Colonel Gerald P. "Jerry" Carr Signed Photo Sky Lab III Astronaut
Newspaper Clipping re Record breaking Round World Balloonist Brian Jones SIGNED
Photo autographed and signed by Yuri Gagarin "First man in space"
HAND SIGNED 4.5" x 3.5" CARD - HUBERT CURIEN 1st EUROPEAN SPACE AGENCY CHAIRMAN
Romanian Postcard Aircraft Used Signed Cosmonaut Prunariu Soyuz 40
1977 USA NASA Space Shuttle Cover Signed Joseph P Allen of NASA
John Gray McKendrick ALS Autograph Postcard - Ernest Starling Guys Hospital 1886
