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  1. Portrait of Abraham Lincoln
  2. White Wolf, a Comanche Chief, c.1891-98
  3. Altering Current
  4. Declaration of Independence _Khaki
  5. Spinosaurus Study
  6. Fortifications Crazy Lace Agate
  7. The Entrance of Joan of Arc into Orleans on 8th May 1429
  8. Civil War painting of Union and Confederate troops fighting at The Battle of Antietam
  9. The Buffalo Hunt
  10. Vintage Civil War print of the Battle of Gettysburg
  11. Zulu Warrior
  12. Declaration Of Independence
  13. Laws of Motion I
  14. RMS Titanic of the White Star Line
  15. George Washington By Gilbert Stuart
  16. Map, WWII Battles, c1945
  17. Strings
  18. Solar System III
  19. Rainbow Book
  20. Laws of Motion II
  21. Laws of Motion III
  22. Mathematical Elements III
  23. George Washington, by Rembrandt Peale, c. 1850
  24. Electromagnetic Radiation
  25. Apache Group, c1906
  26. Composite of 110 different species of ducks and geese
  27. Lacrosse Playing, 1851
  28. Electromagnetism
  29. The Fox and the Crow, illustration from Aesop's Fables
  30. The Milky Way and the other members of our Local Group of galaxies
  31. Sage Agate B
  32. Gravity
  33. Grain
  34. Fibonacci spiral, artwork
  35. United States Constitution - Vertical
  36. Dandelion - Botanical Illustration
  37. 1938 Character Culture Citizenship Guide Poster, Read Good Books
  38. Viking longboats
  39. The Eye of Horus
  40. Albert Einstein
  41. Condor Agate With Fortifcations
  42. Neutral Periodic Table
  43. Neon Periodic Table
  44. Cherry Creek Jasper
  45. The Peacocks Complaint, From The Book Baby's Own Aesop By Walter Crane C.1920
  46. Pi to 2198 decimal places
  47. Apache Men, c1903
  48. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper stone