Posted By:
VintageBall--RobertSThis exact photo is featured in the book "New York Yankees: The First 25 Years" (By Vincent Luisi, Arcadia Publishing's Images of Sports Series, 2002) on page 14.
The caption reads: "The entrance to Hilltop Park is shown c. 1903, when the park opened. Note that horse carriages were still in use and that going to a ballgame still required proper dress."
Interestingly, on page 13 two other images of the park are featured -- one with the "Greater New York Base Ball Club" lettering on the roof of the ticket office (?) and one without.
I would have thought the lettering came later, given that the park was rushed into operation before the field was even completely filled in and before the finishing touches were put on the ballpark (see Reisler's book "Before They Were Bombers" for info on the park's opening).
So -- I wonder of the caption is correct. If it is, and one would think Luisi and Arcadia did their research or their copy of the photo had markings, then this photo of yours is an absolutely amazing find from the first year of the Highlanders/Yankees!