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Jaime LeidermanFound this on Webster & Albee:
Charles R. Webster and Josephus Albee were a major publisher of pirated copies of views. Much of their activity in printing copy views was centered in Rochester, New York. Confusion exists because Webster and Albee also issued views from original negatives, but often the quality was low.
Your stereoview card is from the 1880s by looking at card mount style, color and printing.
Guess they didn't pay F.W. Bacon a penny for the image... and you have to thank them for that!
They gave you the opportunity to own a magnificent image for half the price! 
This is why I like collecting early baseball photography... Research never ends!
Now go buy a cheap stereoviewer and enjoy the 3D image!
jl