Significance
Yields information about the materials used in tramway overhead and could have been used as a specification by ESCo Engineers and standardization of materials in order to reduce costs.
Physical description
Sixteen page booklet, titled "Report of the Sub-Committee on Standardization of Overhead Line Material", published by Municipal Tramways Association, 2nd Edition, issued in May 1921, Submitted to the Annual Meeting of the Manager's Section of the Association at Birmingham, 16/6/1920 under the signature of J. Beckett, General Secretary. Gives an Appendix - List of Drawings, Suggested specification for Standard Copper Trolley Wire, steel span and guard wires, and Overhead wire fittings
