Babe Ruth and Lou Gehrig dressed in cowboy gear at Dexter Park in Brooklyn. Several players from the Brooklyn Bushwicks semipro team (far left) look on. 1927

The event was part of a publicity stunt to advertise the World's Championship Rodeo. 

 The tour, organized by their agent Christy Walsh, took place after the New York Yankees swept the 1927 World Series and featured teams called the "Bustin' Babes" and the "Larrupin' Lou's".

https://forums.aaca.org/topic/341211-period-images-to-relieve-some-of-the-stress/page/655/

https://www.digitalcommonwealth.org/search/commonwealth:b5644z98q