Addendum (11/26 - 2:01 pm). Additional information has been brought to our attention that confirms this photo dates from 1911, not circa 1913 as originally listed. We have been shown a different photo, from the same photo shoot, where the year 1911 is clearly noted in print at the base of the print (from having been etched into the negative). The revised text appears below.

Original glass plate negative capturing the 1911 New York Yankees as they take part in an innovative team photo during spring training. The cameraman has arranged the players in the stands so that they form an “NY” to represent their city affiliation. First baseman Hal Chase can be seen sitting on the ground at the far right, forming the bottom of the “Y.”  The negative (7x5”) displays minor flaws, mainly along the periphery, but the central image is largely unaffected. VG. Culled from the legendary Brown Brothers Photo Archive.