Auction Catalogue
ENGLAND, Institutions of Mechanical Engineers and Electrical Engineers, Peter William Willans Medal, a gilt-bronze award by S. March, named (John Hall Rider, 1910), 51mm; Sweden, 25th Anniversary of Aktiebolaget Separator, Stockholm, 1908, a silver medal by E. Lindberg, 50mm (Ehrensvärd 68) [2]. First extremely fine and in case of issue, a softly-sculpted and rare medal, second about extremely fine £60-80
John Hall Rider (1864-1953), author of Electric Traction: A Practical Handbook on the Application of Electricity as a Locomotive Power
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