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  1. Blue Watercolor Agate Rectangle
  2. War of 1812 print at the Battle of New Orleans
  3. World War I, Western Front
  4. Illustration From The Faerie Queene By Walter Crane 1845-1915 English Artist
  5. Tlazolteotl and Chalchiuhtlicue, Aztec Goddesses of Love and Water. 15th c. Codex Cospi
  6. Vintage Civil War Print of the Battle of Five Forks
  7. Navajo weavers, c.1914
  8. Napoleon Bonaparte in his Study at the Tuileries, By Jacques de Breville, JOB
  9. Illustration showing the various parts that make up the sun
  10. The Historic Meeting Of The Union High Command During The American Civil War
  11. External auditory canal of human ear (with labels)
  12. Pythagoras Maths Equation
  13. John Brown on 30 August 1856 intercepting a body of pro-slavery men
  14. Egyptian and Assyrian counting systems
  15. Soap bubbles on a dodecahedral frame
  16. Malachite
  17. Van Gogh from Space - USGS Earth as Art
  18. The Fir-Tree and the Bramble, illustration from Aesop's Fables
  19. Hey Diddle, Diddle, from Old Mother Goose's Rhymes and Tales
  20. Close Ups Of Fortification On Crazy Lace Agate
  21. Oil Pump Jacks On Canadian Prairie At Dusk, Carlyle, Saskatchewan, Canada
  22. Fascimile of a letter from Vincent Van Gogh to Emile Bernard on the 18th March 1888
  23. George Washington, by Gilbert Stuart (Vaughan-Sinclair portrait), 1795
  24. Inquiry in the Loss of the Titanic: Cross sections of the ship
  25. Hand doing math homework
  26. Armillary sphere
  27. Bogda Mountains - USGS Earth as Art
  28. Petrarch. Italian poet. The in Triumph of Love (15th c.) National Library, Madrid
  29. Conceptual image of neuron
  30. William Shakespeare at the Age 34, By Louis Coblitz, c.1830-60, German, oil on canvas
  31. Vintage Civil War print of Abraham Lincoln riding on horseback as a crowd cheers
  32. Hudson River, Military Map
  33. Alice in the Looking Glass House, from 'Through the Looking Glass' by Lewis Carroll
  34. World War II painting of Winston Churchill wearing his RAF uniform
  35. Flying Machine, drawing by Leonardo da Vinci. Ca. 1488
  36. The Lion, Jupiter and the Elephant, illustration from Aesop's Fables
  37. Mushroom Chart I light
  38. American War of Independence
  39. Pietersite
  40. Antique Stock Certificate IV
  41. Arthritis of the knee, X-ray
  42. A composite showing different stages of the 2010 solstice total moon eclipse
  43. Indigo Agate C
  44. South American Independence
  45. Famous prehistoric rock paintings of Tassili N'Ajjer, Algeria
  46. Spatial dimensions, conceptual artwork
  47. The Quack Frog, illustration from Aesop's Fables
  48. Austenaco, Great Warrior, Commander in Chief of the Cherokee Nation