Branchline Index [1974-02-01, 5, Article, Urban rail, Ballantyne, N. Bruce, Ottawa Electric, Ottawa, ON, Ottawa Electric Railway 600 series cars., <table class="r-html-container"><tbody><tr><td><a href="https://www.bytownrailwaysociety.ca/phocadownload/branchline/1974/1974-02.pdf#page=5" target="_blank">Open PDF</a></td></tr></tbody></table>]