- 1Collection of Papers and Documents Relating to Steam Boiler History (YA1979.24)
1842-1870, fonds - 2British Engine, Boiler and Electrical Insurance Co Ltd Correspondence and Company Literature related to Boiler Safety and Plant Inspections (YA2003.42)
c 1900-1979, fonds - 3Correspondence regarding a Johnson & Phillips hot wire voltmeter (YA1966.25)
1906 September 25-1914 October 20, item
