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John Hopkins Operating Theater, 19031904
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Art Wolfe
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Jan Lukas and Photo Researchers
Earliest Depiction Of Craniotomy
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William Red Hill Sr., Canadian Daredevil
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Wilbur Wright Pilots Early Glider 1901
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Ojibwe Indian Encampment, Sault Ste
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M65 Atomic Cannon
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Balboa Claims The Pacific Ocean
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H.m.s. Beagle
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United States Constitution
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Legs Of Wine #1
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Union Membership Card, 1886
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Montgolfier Hot Air Balloon
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Postman In Tuxedo Delivering Letter
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Kittinger
SPL and Photo Researchers
Ducklings And Goldfish #1
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Llama in Bolivia
Art Wolfe MINT
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Paal Hermansen
E. Lillian Todd
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John Hopkins Operating Room, 19031904
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Medical Body Scans
Lincoln At Antietam
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Yerkes Observatory, Wisconsin
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Phil A. Dotson
Antibody Molecule
Juan Gaertner
Chang And Eng Bunker, The Original
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RMS Queen Elizabeth
Dick Hanley and Photo Researchers
Friedrich Wilhelm Nietzsche, German
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Einsteins Theory Of Gravity
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Occipital Lobe Avm
Medical Body Scans
Hand Arteriogram #5
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Stanford En Route To Golden Spike
Omikron
Gemini Launching, 1964
NASA/Science Source
Open Northwest Passage
Nasa
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Sitting Room In Titanic
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Wilhelm Konrad Roentgen, German #2
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Pony Express Stamp #1
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Entering The California Desert
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Freedom To Slaves
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Griffith Observatory, Los Angeles
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Church Of The Alamo
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Charleston Mercury Union Dissolved
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Orville Wright In Wright Flyer 1908
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Babbages First Difference Engine
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Long-tailed Weasel In Winter #2
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Graf Zeppelin Over Giza Pyramids 1931
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Galen, Avicenna And Hippocrates
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Siberian Tiger
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Comtois Horse #6
M Watson