Edinburgh Street Tramways

Owner Edinburgh Street Tramways Company
Opened 6th November 1871 (horse)
Operator Edinburgh Street Tramways Company
Taken over 9th December 1893 (Edinburgh Corporation - lines within the city boundaries, along with staff, trams and horses working those lines)
Taken over 31st January 1896 (Edinburgh Corporation - Waterloo Place to Jocks Lodge section of the Portobello line)
Taken over 30th June 1898 (Edinburgh Corporation - remainder of the Portobello line)
Taken over 23rd October 1904 (Leith Corporation Tramways - lines within Leith)
Length 18.53 miles
Gauge 4ft 8½ins

Button description Title ('EDINBURGH STREET TRAMWAYS COMP') within a border, surrounding an assumed device (two shields, one with a triple-towered castle and one with a tram car) with a thistle crest.
Materials known Nickel
Button Line reference [116/86]

The design appears to be the company's own attempt at a coat of arms, with only the 'triple-towered castle' based on the actual arms of the City of Edinburgh!