Spectacular example from the desirable W600 Sporting Life cabinet issue, picturing Hall of Famer Joe Kelley.  Along with his M101-1 and National Copper Plate (and not counting the virtually impossible Alpha Engraving card of 1894), the gorgeous cabinet is considered Kelley's rookie card.  In wonderful condition, the cabinet mount does exhibit very light wear at the corners, and is otherwise outstanding.  What appears to be a small white blemish in the image border near the bottom-left is actually a light mark on the holder, and not on the card.  An important card from the popular cabinet card issue.