Items

• [D7702ZBC], Letter from Henry Draper to Thomas Alva Edison, August 6th, 1877
  1877-08-06
• [D7702ZBH], Letter from Henry Draper to Thomas Alva Edison, August 9th, 1877
  1877-08-09
• [D7702ZBR], Letter from Henry Draper to Thomas Alva Edison, August 22nd, 1877
  1877-08-22
• [D7802ZZMG], Letter from Henry Draper to Thomas Alva Edison, November 29th, 1878
  1878-11-29
• [D7903ZKG], Letter from Henry Draper to Thomas Alva Edison, November 3rd, 1879
  1879-11-03
• [D8204ZIK], Letter from Henry Draper to Thomas Alva Edison, November 4th, 1882
  1882-11-04
• [D8220O], Letter from Henry Draper to Thomas Alva Edison, May 14th, 1882
  1882-05-14
• [D8220P], Letter from Henry Draper to Thomas Alva Edison, May 22nd, 1882
  1882-05-22
• [D8220Q], Letter from Henry Draper to Thomas Alva Edison, June 4th, 1882
  1882-06-04