| April 1920, No. 266 | Canadian Railway and Marine World (Toronto) | Page 182, col. 3 |
Grand Trunk Railway construction, betterments, etc.
...
Telephone dispatching installation.—A press report states that it is proposed to instal a telephone despatching system on the line from Hamilton to Sarnia, about 150 miles, at a cost of approximately $200,000 during this year.
Railways: G.T.Ry.