Items

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  [X250AAP], Letter from Alex P Wright to Edward Weston, November 13th, 1884

  1884-11-13
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  [X250AAO], Letter from Alex P Wright to Edward Weston, November 11th, 1884

  1884-11-11
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  [X250AAN], Letter from Alex P Wright to Edward Weston, November 7th, 1884

  1884-11-07
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  [X250AAI], Letter from Alex P Wright to Edward Weston, October 26th, 1884

  1884-10-26
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  [X250AAH], Letter from Alex P Wright to Edward Weston, October 22nd, 1884

  1884-10-22
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  [X250AAB], Letter from John Burkitt Webb to Exhibition. Philadelphia Electrical (1884), September 27th, 1884

  1884-09-27
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  [X250AEF], Essay, Edward Weston, 1886

  1886-00-00
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  [X250ADZ], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 22nd, 1885

  1885-06-22
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  [X250ADO], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 14th, 1885

  1885-06-14
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  [X250ADM], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 13th, 1885

  1885-06-13
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  [X250ADJ], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 10th, 1885

  1885-06-10
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  [X250ADI], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 9th, 1885

  1885-06-09
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  [X250ADD], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 5th, 1885

  1885-06-05
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  [X250ACZ], Letter from Edward Weston to George Bartlett Prescott, Jr., June 2nd, 1885

  1885-06-02
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  [X250ACX], Letter from George Bartlett Prescott, Jr. to Edward Weston, June 1st, 1885

  1885-06-01
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  [X250ACT], Letter from Edward Weston to William Penn Tatham, May 29th, 1885

  1885-05-29
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  [X250ABV], Letter from Edison Lamp Co to Edward Weston, March 20th, 1885

  1885-03-20
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  [X250ABT], Letter from George Bartlett Prescott, Jr. to Edward Weston, March 19th, 1885

  1885-03-19
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  [X250ABS], Letter from George Bartlett Prescott, Jr. to Edward Weston, March 18th, 1885

  1885-03-18
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  [X250ABP], Telegram from George Bartlett Prescott, Jr. to Edward Weston, March 17th, 1885

  1885-03-17
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  [X250ABM], Test Report, Franklin Institute, February 7th, 1885

  1885-02-07
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  [X250ABE], Letter from Alex P Wright to Edward Weston, December 28th, 1884

  1884-12-28
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  [X250AAX], Letter from Alex P Wright to Edward Weston, November 1884

  1884-11-00
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  [X250AAT], Letter from William Penn Tatham to Edward Weston, November 20th, 1884

  1884-11-20
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  [X250AAS], Letter from Alex P Wright to Edward Weston, November 20th, 1884

  1884-11-20
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  [X120AAV], Letter from Frank Enos, Edison Electric Illuminating Co (New York) to Richard Rogers Bowker, March 4th, 1898

  1898-03-04
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  [X120AAO], Report from Richard Rogers Bowker, Edison Electric Illuminating Co (New York), December 1897

  1897-12-00
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  [X001M3284], Letter from Wilson Stout Howell to John White Howell, April 5th, 1889

  1889-04-05
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  [X001M3143], Letter from Wilson Stout Howell to Phillips B Shaw, February 28th, 1888

  1888-02-28
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  [X001E18B], Letter from Edward E Winters to Francis Jehl, April 4th, 1938

  1938-04-04
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  [X001E18A], Letter from Edward E Winters to Francis Jehl, July 29th, 1937

  1937-07-29
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  [SC95053C], Clipping, Philadelphia Public Ledger, October 12th, 1895

  1895-10-12
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  [SC95051a1], Interview, Thomas Alva Edison, October 10th, 1895

  1895-10-10
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  [SC91009B], Clipping, Philadelphia Times, February 2nd, 1891

  1891-02-02
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  [SC88016A], Clipping, Philadelphia Public Ledger, May 26th, 1888

  1888-05-26
• No image

  [PT032AFC1], Letter from Dyer Edmonds and Dyer to Thomas Alva Edison, May 23rd, 1902

  1902-05-23
• No image

  [MM010AAD], Minutes, Illuminating Engineering Society, November 14th, 1907

  1907-11-14
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  [LM245017], Letter from Walter Seeley Mallory to Morton McMichall, Jr., August 6th, 1895

  1895-08-06
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  [LM213611], Letter from Thomas Alva Edison to H C Wood, January 18th, 1897

  1897-01-18
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  [LM211681], Letter from Walter Seeley Mallory to Pilling and Crane, July 29th, 1895

  1895-07-29
• No image

  [LB101316], Letter from Thomas Alva Edison to Horace G Plimpton, January 11th, 1915

  1915-01-11
• No image

  [LB101315], Letter from Thomas Alva Edison to Jeanette Marks, January 11th, 1915

  1915-01-11
• No image

  [LB096482], Letter from Thomas Alva Edison to Mabel Marks Bacon, January 19th, 1914

  1914-01-19
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  [LB057187], Letter from Thomas Maguire (Edison Employee) to John F Randolph, March 9th, 1893

  1893-03-09
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  [LB051100], Letter from Alfred Ord Tate to Edison Manufacturing Co, James W Gladstone, September 18th, 1891

  1891-09-18
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  [LB037352], Letter from Alfred Ord Tate to Thomas Alva Edison, February 17th, 1890

  1890-02-17
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  [LB036281], Letter from Thomas Alva Edison to Henry Villard, January 23rd, 1890

  1890-01-23
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  [LB028306], Letter from Thomas Alva Edison to Henry Villard, February 20th, 1889

  1889-02-20
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  [LB026317], Letter from Alfred Ord Tate to Edison Machine Works, Samuel Insull, September 10th, 1888

  1888-09-10
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  [LB023090], Letter from Samuel Insull to Thomas Alva Edison, November 9th, 1886

  1886-11-09
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  [LB027354], Letter from Thomas Alva Edison to Henry Villard, December 11th, 1888

  1888-12-11
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  [HM88ABD], Letter from Thomas Alva Edison to Henry Villard, December 11th, 1888

  1888-12-11
• No image

  [E1604AY], Telegram from University of Pennsylvania. Towne Scientific School, John Frazer to Thomas Alva Edison, March 24th, 1916

  1916-03-24
• No image

  [E1557AP], Letter from H C Wood to Thomas Alva Edison, November 29th, 1915

  1915-11-29
• No image

  [E1468AA], Letter from Mabel Marks Bacon to Thomas Alva Edison, January 15th, 1914

  1914-01-15
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  [D9814AAA], Letter from Thomas Commerford Martin, Electrical Engineer to Thomas Alva Edison, February 7th, 1898

  1898-02-07
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  [D9324AAA], Letter from Charles Henry Coster to Thomas Alva Edison, January 7th, 1893

  1893-01-07
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  [D9124ABL], Resolution, Edison Electric Light Co of Philadelphia, 1891

  1891-00-00
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  [D9124AAR], Letter from John E Codman, Henry Wilson Spangler to Samuel Baird Huey, May 19th, 1891

  1891-05-19
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  [D9035AAW], Letter from Francis Robbins Upton to Thomas Alva Edison, June 11th, 1890

  1890-06-11
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  [D9033ADG], Letter from Samuel Insull to Alfred Ord Tate, December 15th, 1890

  1890-12-15
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  [D9032AAI], Letter from Benton Knott Jamison to Thomas Alva Edison, February 28th, 1890

  1890-02-28
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  [D8938ABX], Letter from Henry Villard to Thomas Alva Edison, February 22nd, 1889

  1889-02-22
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  [D8938ABH], Letter from Samuel Insull to Henry Villard, July 23rd, 1889

  1889-07-23
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  [D8938ABA], Letter from Henry Villard to Thomas Alva Edison, July 22nd, 1889

  1889-07-22
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  [D8936AAF], Letter from Association of Edison Illuminating Companies, John H Vail to Thomas Alva Edison, January 25th, 1889

  1889-01-25
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  [D8934AAE], Letter from Gardiner C Sims to Thomas Alva Edison, March 8th, 1889

  1889-03-08
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  [D8934AAC], Letter from Gardiner C Sims to Thomas Alva Edison, February 22nd, 1889

  1889-02-22
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  [D8920AAP], Letter from Samuel Insull to Alfred Ord Tate, June 17th, 1889

  1889-06-17
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  [D8905AFH], Letter from Sherburne Blake Eaton to Thomas Alva Edison, August 22nd, 1889

  1889-08-22
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  [D8832AAK], Letter from Thomas Alva Edison to Henry Villard, December 11th, 1888

  1888-12-11
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  [D8831ACD], Letter from John H Vail to Thomas Alva Edison, November 12th, 1888

  1888-11-12
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  [D8820AAI], Letter from Samuel Insull to Alfred Ord Tate, July 5th, 1888

  1888-07-05
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  [D8820AAG], Letter from Samuel Insull to Alfred Ord Tate, June 16th, 1888

  1888-06-16
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  [D8818ATZ], Letter from Thomas Alva Edison to Sigmund Bergmann, September 28th, 1888

  1888-09-28
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  [D8802ACA], Letter from Thomas Alva Edison to Sigmund Bergmann, 1888

  1888-00-00
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  [D8802ABT], Letter from John Hall McClement, Edison Electric Light Co to Edward Hibberd Johnson, November 22nd, 1888

  1888-11-22
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  [D8802ABP], Letter from Edison Machine Works, Samuel Insull to Edison Electric Light Co, Edward Hibberd Johnson, November 19th, 1888

  1888-11-19