Items
Subject is exactly
Testing and quality control
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[Z100FM], Letter from Richard S Culley to Frank Ives Scudamore, October 15th, 1875
1875-10-15 -
[Z100FE], Letter from George Little to Telegrapher, August 1st, 1874
1874-08-01 -
[Z100FC], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, June 25th, 1874
1874-06-25 -
[Z100FB], Letter from James C Parrish, George Edward Gouraud to Henry Fischer (British Telegraph Service), June 20th, 1874
1874-06-20 -
[Z100FA], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 14th, 1874
1874-05-14 -
[Z100EZ], Letter from George Edward Gouraud, James C Parrish to Henry Fischer (British Telegraph Service), May 13th, 1874
1874-05-13 -
[Z100EX], Letter from George Edward Gouraud, James C Parrish to Frank Ives Scudamore, May 1st, 1874
1874-05-01 -
[Z100EW], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 1st, 1874
1874-05-01 -
[Z100EV], Letter from J W Eames to Henry Fischer (British Telegraph Service), May 1874
1874-05-00 -
[Z100EU], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 27th, 1874
1874-04-27 -
[Z100ET], Letter from J W Eames to Henry Fischer (British Telegraph Service), April 25th, 1874
1874-04-25 -
[Z100ES], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 22nd, 1874
1874-04-22 -
[Z100ER], Letter from J W Eames to Henry Fischer (British Telegraph Service), April 18th, 1874
1874-04-18 -
[Z100EQ], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 16th, 1874
1874-04-16 -
[Z100EP], Letter from J W Eames to Henry Fischer (British Telegraph Service), April 15th, 1874
1874-04-15 -
[Z100EO], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 11th, 1874
1874-04-11 -
[Z100EN], Letter from J W Eames to Henry Fischer (British Telegraph Service), April 11th, 1874
1874-04-11 -
[Z100EM], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 5th, 1874
1874-04-05 -
[Z100EL], Letter from J W Eames to Henry Fischer (British Telegraph Service), April 4th, 1874
1874-04-04 -
[Z100EK], Letter from Henry Fischer (British Telegraph Service) to J W Eames, April 1st, 1874
1874-04-01 -
[Z100EJ], Letter from J W Eames to Henry Fischer (British Telegraph Service), March 31st, 1874
1874-03-31 -
[Z100EI], Letter from Henry Fischer (British Telegraph Service) to J W Eames, March 30th, 1874
1874-03-30 -
[Z100EH], Letter from J W Eames to Henry Fischer (British Telegraph Service), March 30th, 1874
1874-03-30 -
[Z100EG], Letter from Henry Fischer (British Telegraph Service) to Thomas Barlow, March 25th, 1874
1874-03-25 -
[Z100EF], Letter from Patey (British Post Office Official) to Great Britain. Post Office. Dublin Secretary, March 19th, 1874
1874-03-19 -
[Z100EC], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, March 11th, 1874
1874-03-11 -
[Z100DZ], Letter from Robert McIlwraith to Lyon Playfair, February 10th, 1874
1874-02-10 -
[Z100DX], Letter from James Anderson to Frank Ives Scudamore, January 5th, 1874
1874-01-05 -
[Z100DW], Letter from Lyon Playfair to Frank Ives Scudamore, December 24th, 1873
1873-12-24 -
[Z100DT], Letter from F E Baines to Richard S Culley, December 20th, 1873
1873-12-20 -
[Z100DS], Letter from William Jennings to F E Baines, December 20th, 1873
1873-12-20 -
[Z100DR], Letter from Richard S Culley to Frank Ives Scudamore, December 22nd, 1873
1873-12-22 -
[Z100DQ], Letter from David Lumsden to Richard S Culley, December 22nd, 1873
1873-12-22 -
[Z100DP], Letter from Frank Ives Scudamore to Richard S Culley, December 18th, 1873
1873-12-18 -
[Z100DO], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, December 18th, 1873
1873-12-18 -
[Z100DM], Letter from Richard S Culley to Frank Ives Scudamore, December 17th, 1873
1873-12-17 -
[Z100DL], Letter from James C Parrish to Richard S Culley, December 16th, 1873
1873-12-16 -
[Z100DK], Letter from Richard S Culley to Frank Ives Scudamore, December 15th, 1873
1873-12-15 -
[Z100DJ], Letter from David Lumsden to Richard S Culley, December 15th, 1873
1873-12-15 -
[Z100DI], Letter from F E Baines to W Beachcraft, December 15th, 1873
1873-12-15 -
[Z100DH], Letter from W K Winter to Frank Ives Scudamore, December 13th, 1873
1873-12-13 -
[Z100DG], Letter from F E Baines to Henry Fischer (British Telegraph Service), December 16th, 1873
1873-12-16 -
[Z100DF], Letter from W K Winter to Frank Ives Scudamore, December 16th, 1873
1873-12-16 -
[Z100DE], Letter from F E Baines to Richard S Culley, December 16th, 1873
1873-12-16 -
[Z100DD], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, December 16th, 1873
1873-12-16 -
[Z100DC], Letter from W K Winter to Frank Ives Scudamore, December 13th, 1873
1873-12-13 -
[Z100DB], Letter from Frank Ives Scudamore to Richard S Culley, December 15th, 1873
1873-12-15 -
[Z100DA], Letter from W K Winter to Frank Ives Scudamore, December 13th, 1873
1873-12-13 -
[Z100CZ], Letter from James Anderson to Frank Ives Scudamore, December 10th, 1873
1873-12-10 -
[Z100CY], Letter from Frank Ives Scudamore to James Anderson, June 1873
1873-06-00 -
[Z100CX], Letter from James Anderson to Frank Ives Scudamore, June 1873
1873-06-00 -
[Z100CV], Letter from George Edward Gouraud to Frank Ives Scudamore, June 13th, 1873
1873-06-13 -
[Z100CU], Letter from David Lumsden to Richard S Culley, May 28th, 1873
1873-05-28 -
[Z100CT], Letter from Richard S Culley to Frank Ives Scudamore, June 6th, 1873
1873-06-06 -
[Z100CS], Letter from J W Eames to Henry Fischer (British Telegraph Service), May 28th, 1873
1873-05-28 -
[Z100CN], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 30th, 1873
1873-05-30 -
[Z100CM], Report from Richard S Culley, May 22nd, 1873
1873-05-22 -
[Z100CL], Letter from E Groves to Richard S Culley, May 20th, 1873
1873-05-20 -
[Z100CK], Letter from Richard S Culley to Frank Ives Scudamore, May 21st, 1873
1873-05-21 -
[Z100CJ], Letter from Frank Ives Scudamore to Richard S Culley, May 14th, 1873
1873-05-14 -
[Z100CH], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, May 20th, 1873
1873-05-20 -
[Z100CG], Letter from Frank Ives Scudamore to Henry Fischer (British Telegraph Service), May 13th, 1873
1873-05-13 -
[Z100CF], Letter from Frank Ives Scudamore to Richard S Culley, May 13th, 1873
1873-05-13 -
[Z100CE], Letter from Richard S Culley to Frank Ives Scudamore, May 12th, 1873
1873-05-12 -
[Z100CD], Letter from Frank Ives Scudamore to Richard S Culley, May 9th, 1873
1873-05-09 -
[Z100CC], Letter from Richard S Culley to Frank Ives Scudamore, March 6th, 1873
1873-03-06 -
[Z100CA], Letter from Richard S Culley to Frank Ives Scudamore, March 1st, 1873
1873-03-01 -
[Z100BX], Letter from Frank Ives Scudamore to George Edward Gouraud, February 27th, 1873
1873-02-27 -
[Z100BS], Letter from Richard S Culley to Frank Ives Scudamore, February 19th, 1873
1873-02-19 -
[Z100BQ], Letter from George Edward Gouraud to Frank Ives Scudamore, February 17th, 1873
1873-02-17 -
[Z100BO], Letter from Daniel H Craig to Frank Ives Scudamore, February 12th, 1873
1873-02-12 -
[Z100BN], Letter from Frank Ives Scudamore to Daniel H Craig, January 27th, 1873
1873-01-27 -
[Z100BH], Letter from Richard S Culley to Frank Ives Scudamore, November 6th, 1872
1872-11-06 -
[Z100AY], Letter from Daniel H Craig to Frank Ives Scudamore, October 11th, 1872
1872-10-11 -
[Z100AR], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, August 18th, 1870
1870-08-18 -
[Z100AN], Letter from Henry Fischer (British Telegraph Service) to Frank Ives Scudamore, June 20th, 1870
1870-06-20 -
[Z005AT], Letter from Thomas Alva Edison to William Henry Preece, March 18th, 1878
1878-03-18 -
[Z005AR], Letter from Henry Bentley to Thomas Alva Edison, March 10th, 1878
1878-03-10 -
[Z005AN], Letter from Henry Bentley to Thomas Alva Edison, February 10th, 1878
1878-02-10 -
[Z005AC], Letter from Thomas Alva Edison to William Henry Preece, September 3rd, 1877
1877-09-03 -
[X511E], Report from Emile George Perrot, Edward Dayton Boyer, Arthur Newell Talbot, Nathan Clarke Johnson, Richard Lewis Humphrey, Theodore Lincoln Condron, August 1915
1915-08-00 -
[X511C], Report from Theodore Lincoln Condron, August 1915
1915-08-00 -
[X504F], Letter from Thomas Alva Edison to Pusey Bancroft Heald, Foster (J.A.) Co, November 13th, 1925
1925-11-13 -
[X501D42] Test Report, c. 1900
1900-00-00 -
[X501D40], Letter from Charles Francis Hunter to Thomas Alva Edison, May 6th, 1926
1926-05-06 -
[X501D38], Letter from Charles Francis Hunter to Thomas Alva Edison, October 30th, 1923
1923-10-30 -
[X501D35], Letter from John Vincent Miller to Thomas Alva Edison, December 15th, 1920
1920-12-15 -
[X501D34], Letter from John Vincent Miller to Thomas Alva Edison, December 15th, 1920
1920-12-15 -
[X501D30], Technical Note, Charles Francis Hunter, December 8th, 1920
1920-12-08 -
[X501D24] Technical Note, c. 1916
1916-00-00 -
[X501D23], Technical Note, Charles Francis Hunter, 1920
1920-00-00 -
[X501D22] Technical Note, c. 1919
1919-00-00 -
[X501C08], Technical Note, Roy Charles Mitchell, September 8th, 1923
1923-09-08 -
[X501C04], Letter from Roy Charles Mitchell to Harold Newton Cox, Robert Abraham Bachman, John Vincent Miller, March 12th, 1918
1918-03-12 -
[X501C03], Letter from Roy Charles Mitchell to John Vincent Miller, Robert Abraham Bachman, Harold Newton Cox, March 9th, 1918
1918-03-09 -
[X501C01], Letter from Lamar Lyndon to Robert Abraham Bachman, September 18th, 1917
1917-09-18 -
[X501B05A], Article, Philadelphia Record, Philip Francis Nowlan, May 2nd, 1915
1915-05-02 -
[X501B05], Clipping, Philip Francis Nowlan, Philadelphia Record, May 2nd, 1915
1915-05-02 -
[X501B04], Clipping, Philadelphia North American, April 14th, 1915
1915-04-14 -
[X501B03], Clipping, Philadelphia Public Ledger, April 1915
1915-04-00