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  1. Modern Comanche, 1891
  2. Arthritis of the knee, X-ray
  3. Flying Machine, drawing by Leonardo da Vinci. Ca. 1488
  4. Vintage Parchment Drafting Compass 1912 Patent Poster
  5. Vintage American History painting of Alexander Hamilton
  6. Microphone
  7. Apache Men, c1906
  8. Animal Kingdom Educational Poster
  9. Flowering Plum Orchard (After Hiroshige), 1887
  10. Hand doing math homework
  11. Aquatic Collage
  12. Grey Agate B
  13. Tlazolteotl and Chalchiuhtlicue, Aztec Goddesses of Love and Water. 15th c. Codex Cospi
  14. Tuberculosis, Don't Kiss Me!: Your Kiss of Affection, the Germ of Infection - WPA Poster
  15. Ruth Bader Ginsburg, Supreme Court of the United States portrait 2016
  16. Portrait Of Ida B. Wells Barnett, 1893
  17. Close Ups Of Fortification On Crazy Lace Agate
  18. Vintage Parchment Drafting Triangle 1922 Patent Poster
  19. King Tut's Mask
  20. Fortifications Agua Nueva Agate
  21. Australia, Northern Territory, Arnhem Land, Mt Borradaile, rock paintings
  22. Abraham Lincoln, 1809
  23. Mathematical Elements IV
  24. Hey Diddle, Diddle, from Old Mother Goose's Rhymes and Tales
  25. Civil War painting of Union and Confederate troops fighting at The Battle of Bull Run
  26. Molecule Vanilin
  27. Map of England, Britannia Antiqua
  28. Conceptual image of neuron
  29. Unidentified Viking scene with longship aflame
  30. Stacked Agate II
  31. American History print of President Washington and Lincoln
  32. Pipette Dripping Liquid Into Test Tubes
  33. Brain, artwork
  34. Sunflower - Botanical Illustration
  35. Cover For The Harper & Brothers 1910 Edition Of The Adventures Of Tom Sawyer
  36. Civil War print of Union cavalry soldiers charging a Confederate firing line
  37. Vintage Civil War print of the Battle of Fredericksburg
  38. Frank 'The Enforcer' Nitti
  39. The Saturday Evening Post, Do As Your Doctor Tells You
  40. The Underground Railroad Aids With A Runaway Slave
  41. Hudson River, Military Map
  42. External auditory canal of human ear (with labels)
  43. A Mad Teaparty By Charles Folkard
  44. Old School II
  45. The Historic Meeting Of The Union High Command During The American Civil War
  46. Vintage Parchment Paper Clip Patent Poster
  47. Apothecary
  48. Pennsylvania, Gettysburg, Battle of Gettysburg, tree and battlefield monument, dawn