I was perusing ebay and came across this auction. It is described as a cabinet photo of a 1900's baseball player. The photo mount is labeled "Blair and Webber Plattsburg". Don't know if it is Plattsburgh, NY or Plattsburg, MO. Here are the photos. It is not my intent to 'steal' these from the seller, I just didn't want them to get lost to the ether when the auction goes away.
Edit - for those of you who don't like to read the comments, I've been informed that the location is NY. Blair and Webber still has a studio on Peru Street in Plattsburgh.