This picture is undated but it captures a very specific moment in Academic Quad history:
What you instantly see is the short (maybe recently replanted?) hedges but also note two other things: the hedges still close off part of the east and west sides and the trees aren’t Italian cypresses but instead yews of some kind.
It’s the yews that give me the latest possible date for the shot. Here’s a Thresher article from December 1983 about their removal and relocation:
It’s hard not to feel some small stirrings of pity for the Building and Grounds Committee.