Polo Grounds and Yankee Stadium, New York City, ca 1943 – Only the Harlem River separates these two beauties
September 15, 1921: Babe Ruth again breaks his own home run record with #55 at Polo Grounds – Society for American Baseball Research
Babe Ruth, teeing off on a Tommy Thomas pitch, becomes the first player to homer over the roof of Comiskey Park - This Day In Baseball
Babe Ruth Band at Polo Grounds. - The New York Times
Babe Ruth: The magical summer of 1927 - Sports Illustrated Vault
After reading that a lot of Major League Baseball stadiums in the early decades (the field dimensions specifically) was so large that hitting home runs were not easy, was Babe Ruth's HR
1920: Babe Ruth Highlights in Color
Babe Ruth's 1920 Baseball Season
Baseball Researcher: A Closer Look at Photos Used to Authenticate the $4.4 Million Babe Ruth Jersey
Babe Ruth crossing the plate after making his first home run of the season today - PICRYL - Public Domain Media Search Engine Public Domain Search
Babe Ruth touching home at the Polo Grounds, 1920. My Colorization. : r/baseball
Yankee Stadium's first winner: Sigel's Bob Shawkey, Local