Fire on July 23rd, 1971 in what is now the service area for Le Cathcart.
https://www.newspapers.com/clip/107756900/place-ville-marie-fire/
https://www.newspapers.com/clip/107756924/pvm-fire-2/
Marsh McLennan and Mercer was in Place Ville Marie back in 1962
They moved out to 1801 McGill College in the 1970's than 600 de Maisonneuve and 1981 McGill
Google Earth 3D-model of Montreal as of July 2019 has been updated again showing PVM in its construction glory and the new Champlain bridge
Here's a video in Color!.