1910 Ad Wolgast vs. Battling Nelson, Round 27, Original  Real Photo Postcard Measuring 3 3/8 x 5 3/8.

Wollgast was knocked down in the 22nd round but came back to stop Nelson in the 40th round because Nelson's eye was swelled shut and he could not see. 

There is some staining along the top of the photo, and a pinhole in the top middle position.  The back has some paper loss from being taken from an album and some black paper residue on top right corner area.   

Otherwise toning and staining present on the reverse.