These cabinets truly are an amazing find. Looking forward to see what they'll go for. It should be noted though that there is an error in the description saying that the team composite from 1896 is one of a kind. There was another example of this composite offered in the February 2007 Mastro Auction.
http://www.legendaryauctions.com/lot-67670.aspx
It's still a great item but it isn't the only one known.
Josh