Here’s a great photo from the 1934 season, showing Babe Ruth taking batting practice before a game at Fenway Park. Behind the cage you can see Lou Gehrig waiting his turn.
New York Yankee Babe Ruth (#3) swinging away in the batting cage in front of coach Johnny Schulte (#21) at Fenway Park. Teammate Lou Gehrig (#4) looks on.
Source: Digital Commonwealth
