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  1. Study of the Human Figure, Lateral View
  2. Pythagoras Maths Equation
  3. Space Suit
  4. Leaded
  5. Florence Nightingale (1820-1910) illustration from World Noted Women
  6. Blue Watercolor Agate Rectangle
  7. The Planet Saturn
  8. Malachite
  9. Vintage Parchment Drafting Triangle 1922 Patent Poster
  10. Knights charging into battle
  11. For Your Country's Sake Today - Women in the Armed Forces
  12. Oil drilling rig
  13. Malcolm X
  14. Gem Stones I
  15. Washington Crossing The Delaware On The Evening Previous To The Battle Of Trenton
  16. Desk Tools III
  17. Vintage World War II poster featuring a fighter plane and a ship patrolling the sea
  18. No Man's Land - USGS Earth as Art
  19. Photograph of logarithmic slide rule
  20. The Planet Earth
  21. Stacked Agate I
  22. Chrysocolla
  23. Alberta, Reserve, c1890
  24. Human brain anatomy, lateral view
  25. John Bunyan. Author Of the Pilgrim's Progress. From The Portrait By Sadler
  26. Fascimile of a letter from Vincent Van Gogh to Emile Bernard on the 18th March 1888
  27. Mathematical Elements II
  28. Teach on Mars and its Moons
  29. Abraham Lincoln, 1809 - 1865, 16th President Of The United States, Gettysburg Portrait
  30. Desk Tools I
  31. The Planet Jupiter
  32. Indian Motor Cycle Ambulance
  33. RMS Titanic: 1st Class Dining Saloon on D-Deck, 1912
  34. General Curtis LeMay and President Kennedy
  35. Shattuckite Jasper
  36. Frank Whittle's early development of the jet engine
  37. George And Martha Washington At Presidential Reception
  38. Ocean Jasper
  39. Mercury I
  40. Mistletoe - Botanical Illustration
  41. Conceptual image of neuron
  42. The Battle Of Williamsburg, Virginia On May 5th 1862
  43. Washing Gold, Calaveras, California, 1853
  44. Blues Guitarist And Singer Rosetta Tharpe Playing Steel Guitar
  45. Andes - USGS Earth as Art
  46. Alphabet Blue
  47. Inquiry in the Loss of the Titanic: Cross sections of the ship
  48. Solar System II