Posted By:
HalleyGatorThanks to David and MW ! 
ONE set of Alleghnay cards were produced as a prototype and NEVER made it to distribution.
To me, this is NO DIFFERENT than if I go out right now and hire a printing company to make me a card (quality doesn't matter since it is only a "prototype") of every MLB player.
Would anyone bid on them if I sold them on EBay? NO
Would they be worth anything 100 years from now?? NO
The Alleghany was a box set of cards that was made in 1904 and then stuck in a box and NEVER saw the light of day until 1991.
To me ... for a baseball card to be a "baseball card" ... IT HAS TO BE SOMETHING I COULD HAVE COLLECTED IF I HAD BEEN A KID COLLECTING AT THAT TIME!!!!
Even the most avid collector in 1904 could NOT have gotten his hands on an Alleghany ... so it isn't a card.
Call it whatever you want: "A neat one-of-a-kind baseball collector's item" ... but to me it isn't a "baseball card."