John Nevil Maskelyne,
Sharps and Flats
“ In cases where the dealer uses apparatus for cheating, his requirements are three in number. Firstly, he must have what is known as a 'two-card' dealing-box, that is, a box which will allow him, whenever he pleases, to withdraw two cards at one time, instead of compelling him to deal them singly. Secondly, he must have an 'odd,' or fifty-third card. Lastly, he requires a mechanical shuffling-board, which adds the 'odd' to the pack, after the cards have been counted at the commencement of the game.The two-card box is one of the most expensive cheating tools a sharp can use. ”
