Edinburgh Northern Cable Tramway Co
1887 The Patent Cable Tramways Corporation constructed a cable tramway in Edinburgh, running north from Princes Street, for the Edinburgh Northern Cable Tramway Company under the supervision of W. N. Colam; the contractor was Dick, Kerr and Co[1].
1889 A second cable tramway was opened by the company, within half a mile of the first line, operated by the same machinery[2]
The whole of the Edinburgh tramway system was taken over by Edinburgh Corporation, who decided that the cable system should be introduced on the greater part of the existing tramway routes and additional lines.
1894 The Edinburgh and District Tramways Co was registered on March 6th and acquired from the Edinburgh Corporation leases (expiring in 1919) of about 23.75 miles of tramway, including 3 miles of original cable tramway. [3]