Getty Images says:
Outfielder Rick Monday #7 of the Chicago Cubs bats against the New York Mets during a Major League Baseball game circa 1976 at Shea Stadium in the Queens borough of New York City. Monday played for the Cubs from 1972-76. (Photo by Focus on Sport/Getty Images)
I can tell you one thing about this photo without looking up anything at all: It wasn’t taken in 1976.
How do I know that? Because in 1976, the Cubs wore a team centennial patch on the right jersey sleeve. There’s no such patch visible on Monday here — nor on the on-deck batter, nor on the player in the dugout.