Items

• [CJ003AAQ], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, April 11th, 1891
  1891-04-11
• [CJ003AAR], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, April 13th, 1891
  1891-04-13
• [CJ003AAU], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, April 14th, 1891
  1891-04-14
• [CJ003ABI], Telegram from Edgar Conway Felton, Pennsylvania Steel Co to West Orange Laboratory, May 6th, 1891
  1891-05-06
• [CJ003ABY], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, May 25th, 1891
  1891-05-25
• [CJ003ACK], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, June 2nd, 1891
  1891-06-02
• [CJ003ACW], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, June 5th, 1891
  1891-06-05
• [CJ003ADU], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Thomas Alva Edison, June 16th, 1891
  1891-06-16
• [CJ615ABN], Letter from Pennsylvania Steel Co, Edgar Conway Felton to Walter Seeley Mallory, May 3rd, 1907
  1907-05-03
• [D9820AAB], Letter from Harry Huse Campbell, Pennsylvania Steel Co to Thomas Alva Edison, January 11th, 1898
  1898-01-11
• [E1421FP], Letter from Pennsylvania Steel Co, Robert Wallace Gillispie to Thomas Alva Edison, December 15th, 1914
  1914-12-15