Items

Items

• 

  [E1616ACU], Letter from Pittsburgh Plate Glass Co, Halbert Kellogg Hitchcock to Thomas Alva Edison, January 31st, 1916

  1916-01-31
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  [E1910AX], Letter from Pittsburgh Plate Glass Co, Halbert Kellogg Hitchcock to Thomas Alva Edison, May 10th, 1919

  1919-05-10
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  [E1930BJ], Letter from Pittsburgh Plate Glass Co, Halbert Kellogg Hitchcock to William Henry Meadowcroft, November 14th, 1919

  1919-11-14
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  [E1930BK], Letter from Halbert Kellogg Hitchcock, Pittsburgh Plate Glass Co to Harry Bertram Higgins, November 14th, 1919

  1919-11-14
• 

  [E1930BM], Letter from Pittsburgh Plate Glass Co, Harry Bertram Higgins to Thomas Alva Edison, November 17th, 1919

  1919-11-17
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  [E1930BN], Telegram from Pittsburgh Plate Glass Co to Edison (Thomas A.) Inc, November 25th, 1919

  1919-11-25
• 

  [E1948AA], Letter from Pittsburgh Plate Glass Co, Halbert Kellogg Hitchcock to Thomas Alva Edison, January 3rd, 1919

  1919-01-03
• 

  [MF14AN], Letter from Pittsburgh Plate Glass Co, Halbert Kellogg Hitchcock to Thomas Alva Edison, April 7th, 1917

  1917-04-07