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  1. French Writer Albert Camus (1913-1960) At Home June 13, 1947
  2. Fludd's wind diagram
  3. Revolutionary War Print of General Mad Anthony Wayne
  4. Plans For The Maryland State House
  5. World War II 'Careless Talk' propaganda poster art, 1944
  6. Artillery park during the American Civil War
  7. Perpetual motion machine, 19th century
  8. National Security Council on Sept 12, 2001
  9. James Baldwin (1924-1987
  10. World War II poster showing the head of a man with his mouth taped shut
  11. Men in Armour IV
  12. Antietam, Maryland, 1862
  13. Presidential portait of Lyndon Baines Johnson
  14. Hughes' printing telegraph
  15. Early radiography experiment
  16. Members Of The International Council Of Women
  17. Signature Of Charles Dickens, 1812-1870. From The Book Bleak House
  18. Author Nathaniel Hawthorne
  19. You--Buy A Liberty Bond--Lest I Perish!, 1917
  20. Cut-away artwork of a windmill for grinding corn
  21. Heart anatomy, 19th Century illustration
  22. Anitkabir Mausoleum of Mustafa Kemal Ataturk
  23. President Eisenhower and future Presidents Lyndon Johnson and Richard Nixon
  24. St. Patrick's Cathedral, New York
  25. Railroad Timetable From 1864
  26. Booker T. Washington (1856-1915)
  27. Digitally restored vecotr poster of President Theodore Roosevelt
  28. Construction Of The Library Of Congress Photos May 4, 1892
  29. Interior View Of Independence Hall, Philadelphia By M. Rosenthal
  30. Civil War print of Abraham Lincoln riding on horseback as a crowd cheers
  31. The Battle Of Gettysburg - View From The Summit Of Little Round Top
  32. Messenger Boy
  33. George H. W. Bush
  34. Babe Didrikson Zaharias holding trophy after the Tam O'Shanter golf tournament
  35. Tesla
  36. Fifty cent coin featuring John F. Kennedy
  37. World War I poster featuring the heads of four leaders from the Central Powers
  38. Woburn Abbey
  39. Louis Pasteur, French microbiologist
  40. Mae Jemison (1956- )
  41. Valley of the Kings, Thebes, Egypt, Africa
  42. Foot anatomy, 19th Century illustration
  43. World War II poster of a man inspecting the inner workings of a statue's brain
  44. German astronomy atlas, 1882
  45. Barack Obama (1961- )
  46. Puerto Rico, San Juan, Old San Juan, El Morro Fortress, lighthouse
  47. Barack Obama (2008)
  48. May Day, 1907