Posted By:
MikeNice Piece, Amber!
Seems they are becoming more known now (though still extremely scarce). In the latest Mastro auction catalog - delivered by moving company yesterday -there's an Eddie Collins on p. 69 - lot 179
http://www.mastronet.com/index.cfm?action=DisplayContent&ContentName=Lot%20Information&LotIndex=84732&LastLotListing=Lot%20Search%20List&CurrentRow=1
also not in the list Alan posted above.