![](http://www.alamy.com/thumbs/6/A604D27A-A204-456D-8D68-E3F8F095CE8E/D5GTNP.jpg)
Polo Grounds - warming up (LOC)
Size: 1664px × 1200px
Photo credit: © PF-(bygone1) / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: baseball, bygone, congress, dc:identifier=, dc:identifier=httphdllocgovlocpnpggbain14515, era, grounds, historic, history, league, library, libraryofcongress, major, majorleaguebaseball, photo, polo, pologrounds, vintage, xmlns:dc=, xmlns:dc=httppurlorgdcelements11