Anja Borck reports in her 2009 article “SEEN BUT IGNORED
Concordia University’s Henry Foss Hall Building
in Montréal“:

“The chair of SGWU’s Fine Arts Department, Alfred Pinsky, was not satisfied with that visual trick and insisted on a more substantial base for the optically heavy top. He introduced the fieldstone for the sidewalls of the foyer, an unusual look in high-rise buildings.”