Items

• [D8420V], Publication, Callender Insulating and Waterproofing Co, W M Callender, June 24th, 1884
  1884-06-24
• [D8531ZAK], Agreement, Callender Insulating and Waterproofing Co, Edison Machine Works, 1885
  1885-00-00
• [D8531ZAL], Agreement, Edison Machine Works, Callender Insulating and Waterproofing Co, 1885
  1885-00-00
• [D8627ZAA1], List, Callender Insulating and Waterproofing Co, August 27th, 1886
  1886-08-27
• [D8627ZAX], Agreement, Edison Machine Works, Callender Insulating and Waterproofing Co, 1886
  1886-00-00
• [D8627ZAY], Agreement, Callender Insulating and Waterproofing Co, Edison Machine Works, 1886
  1886-00-00
• [D8627ZAZ], Agreement, Callender Insulating and Waterproofing Co, Edison Machine Works, 1886
  1886-00-00
• [D8627ZBA], Agreement, Callender Insulating and Waterproofing Co, Edison Machine Works, 1886
  1886-00-00
• [D8855ACK], Letter from W M Callender, Callender Insulating and Waterproofing Co to Alfred Ord Tate, December 14th, 1888
  1888-12-14