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  1. Grey Agate B
  2. Rhodochrosite Mineral From China's Wuton Mine
  3. A diagram showing the phases of the Earths moon
  4. Remington, Cowboys, 1888
  5. Let Freedom Ring I
  6. Normal spine, X-ray
  7. Plum Agate B
  8. Portrait of Chief Red Cloud in headdress
  9. Solar System - Minimal
  10. Tribute To Vikings
  11. The First Reading of the Emancipation Proclamation Before the Cabinet
  12. Oil well pump jacks at Bakken Oil Field near Estevan, Saskatchewan, Canada
  13. Mathematical Elements I
  14. Paul Revere By John Singleton Copley
  15. The Doctrine of Monroe
  16. Buffalo Hunt, 1830S
  17. Old Brass', a native North American, 19th century
  18. In A Stampede
  19. The Hare and the Tortoise, illustration from Aesop's Fables
  20. World War II: Headline, 1941
  21. Lincoln's Gettysburg Address
  22. Light Bulb
  23. Wild West
  24. Portrait Of John Brown
  25. Agate Studies III
  26. John Coltrane Playing The Soprano Saxophone, 1960's
  27. Earth Agate F
  28. Saturn
  29. Elizabeth of Bourbon (1603-1644). Queen of Spain. Alcazar Castle, Segovia, Spain
  30. Solar system
  31. Benjamin Franklin's face on the Hundred Dollar Bill
  32. Ford Engine
  33. Let Freedom Ring II
  34. Boho Periodic Table
  35. Composite of 90 different species of parrots
  36. Horse Chestnut - Botanical Illustration
  37. Civil War painting of Union and Confederate troops fighting at The Battle of Bull Run
  38. Attorney And Client, Fortitude And Impatience. Illustration From The Book Bleak House
  39. Apple Tree - Botanical Illustration
  40. The Round-Up, 1888
  41. The lumbar vertebrae
  42. Math Formulas On Chalkboard
  43. Be Whoo You Are
  44. Obama: Believe
  45. Electric Coloured Sky
  46. Jupiter
  47. Ra
  48. Martin Luther King, Jr. (1929-1968)