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  1. School supplies
  2. Joan of Arc Re-Captures City of Beaugency From the British
  3. Arthritis of the knee, X-ray
  4. RMS Titanic being moved out of drydock, March 6, 1912
  5. Pastel Periodic Table - Classic Text
  6. Hello Calculator
  7. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  8. Molecule Licorice
  9. Modern Geode IV
  10. Napoleon Bonaparte crossing Alps through Saint Bernard Pass
  11. Teacher's desk in classroom
  12. Garden Tulip - Botanical Illustration
  13. Wilson Dam, Flood Gates
  14. Newsboy Ned Parfett announcing the sinking of the 'Titanic' on April 16, 1912
  15. Portrait of Samuel Adams (1722-1803)
  16. Dental X-ray
  17. The Moon
  18. Diphtheria treatment, artwork
  19. Neptune
  20. Paisley Agate
  21. Stamp out Syphilis and Gonorrhea - WPA Poster
  22. General Ulysses S. Grant leading Union troops into battle
  23. Hampton Institute, 1899
  24. Desk Tools IV
  25. Normal shoulder, X-ray
  26. Blues Guitarist And Singer Rosetta Tharpe Playing Steel Guitar
  27. Balance
  28. Portrait Of Rosa Parks, Civil Rights Leader
  29. Sioux Dance, 1890
  30. A diagram of the Milky Way, depicting its various named parts
  31. Rib cage and heart, 3D CT scan
  32. The Last of the Spirits. Illustration for the novella A Christmas Carol
  33. Bees - Vintage Educational Poster
  34. Vintage Civil War print of President Abraham Lincoln and his cabinet
  35. Early Stone Implements
  36. Molecule Peppermint
  37. Molecule Honey
  38. The Summer Road
  39. Close-Up Of Fortification Laguna Agate
  40. Native Americans Bringing Furs To Dutch Traders
  41. Portrait Of Ida B. Wells Barnett, 1893
  42. How Seeds Travel
  43. The vertebral column
  44. The Hare and the Frogs, La Fontaine's Fables, 1900
  45. Gem Stones I
  46. Conversion
  47. Rice Terraces, Longsheng Ping'an, Guangxi
  48. Prohibition Cartoon, 1920s