Items

• [D7004C], Letter from Thomas Alva Edison to Marshall Lefferts, October 19th, 1870
  1870-10-19
• [D7217A], Letter from Edward Augustin Calahan to Marshall Lefferts, June 1st, 1872
  1872-06-01
• [D7307C], Letter from Thomas Alva Edison to Marshall Lefferts, April 21st, 1873
  1873-04-21
• [X099CD], Letter from William Orton to Marshall Lefferts, March 18th, 1871
  1871-03-18
• [X099CH], Letter from William Orton to Marshall Lefferts, June 18th, 1872
  1872-06-18
• [X099CI], Letter from William Orton to Marshall Lefferts, September 5th, 1872
  1872-09-05
• [X111AA], Letter from Daniel H Craig to Marshall Lefferts, July 12th, 1870
  1870-07-12
• [X111AB], Letter from Daniel H Craig to Marshall Lefferts, July 21st, 1870
  1870-07-21
• [X111AC] Letter, 1870-1871
  1870-1871
• [X111AD] Letter, 1870-1871
  1870-1871
• [X111AE], Letter from Daniel H Craig to Marshall Lefferts, February 13th, 1871
  1871-02-13
• [X111AF], Letter from Daniel H Craig to Marshall Lefferts, March 1st, 1871
  1871-03-01
• [X111AH], Letter from Elisha Whittelsey Andrews to Marshall Lefferts, June 21st, 1871
  1871-06-21
• [X111AI], Letter from Daniel H Craig to Marshall Lefferts, July 31st, 1871
  1871-07-31
• [X111AJ], Letter from Daniel H Craig to Marshall Lefferts, August 8th, 1871
  1871-08-08
• [X111AL], Letter from Daniel H Craig to Marshall Lefferts, October 26th, 1871
  1871-10-26
• [X111AM], Letter from Daniel H Craig to Marshall Lefferts, 1871
  1871-00-00
• [X111AN], Letter from Daniel H Craig to Marshall Lefferts, 1871
  1871-00-00
• [X111AO] Letter, 1871-1872
  1871-1872
• [X111AP], Letter from Daniel H Craig to Marshall Lefferts, May 24th, 1872
  1872-05-24
• [X111AQ], Letter from Daniel H Craig to Marshall Lefferts, July 1st, 1872
  1872-07-01
• [X111AS], Letter from Daniel H Craig to Marshall Lefferts, 1872
  1872-00-00
• [X111AT], Letter from Exchange Telegraph Co Ltd to Marshall Lefferts, January 31st, 1874
  1874-01-31
• [X111AU] Letter, 1874-1875
  1874-1875
• [X111AV] Letter, 1874-1875
  1874-1875
• [X111AW] Letter, 1874-1875
  1874-1875
• [X111AX] Letter, 1874-1875
  1874-1875
• [X111AX1] Letter, 1874-1875
  1874-1875
• [X111AZ], Letter from Amasa Mason to Marshall Lefferts, April 8th, 1876
  1876-04-08
• [X111BA], Letter from Thomas Alva Edison to Marshall Lefferts, April 11th, 1876
  1876-04-11
• [X111BB], Letter from Thomas Alva Edison to Marshall Lefferts, April 11th, 1876
  1876-04-11
• [X111BC], Letter from Amasa Mason to Marshall Lefferts, April 13th, 1876
  1876-04-13
• [X111BE], Letter from Thomas Alva Edison to Marshall Lefferts, May 1st, 1876
  1876-05-01
• [X111BF], Letter from Amasa Mason to Marshall Lefferts, May 5th, 1876
  1876-05-05
• [X111BG], Telegram from Thomas Alva Edison to Marshall Lefferts, May 5th, 1876
  1876-05-05
• [X111BH], Letter from Thomas Alva Edison to Marshall Lefferts, May 5th, 1876
  1876-05-05
• [X111BJ], Telegram from Thomas Alva Edison to Marshall Lefferts, May 11th, 1876
  1876-05-11
• [X111BM], Letter from George B Walter to Marshall Lefferts, May 20th, 1876
  1876-05-20
• [X111BQ], Letter from Thomas Alva Edison to Marshall Lefferts, May 25th, 1876
  1876-05-25
• [X111BR], Letter from Amasa Mason to Marshall Lefferts, May 25th, 1876
  1876-05-25
• [X111BU], Letter from Amasa Mason to Marshall Lefferts, May 27th, 1876
  1876-05-27
• [X111BV], Letter from Amasa Mason to Marshall Lefferts, May 30th, 1876
  1876-05-30
• [X111BX], Letter from Charles Batchelor to Marshall Lefferts, June 2nd, 1876
  1876-06-02
• [X111BY], Letter from Amasa Mason to Marshall Lefferts, June 3rd, 1876
  1876-06-03
• [X111CC], Bill/Receipt from Edison's Electric Pen and Duplicating Press Co to Marshall Lefferts, June 17th, 1876
  1876-06-17
• [X111CD], Letter from Amasa Mason to Marshall Lefferts, June 30th, 1876
  1876-06-30
• [X111CE], Letter from Thomas Alva Edison to Marshall Lefferts, June 1876
  1876-06-00
• [X111CG], Letter from Thomas Alva Edison to Marshall Lefferts, 1876
  1876-00-00