If, after the deal has been completed and before the trump declaration
has been made, either the dealer or his partner expose a card from his
hand, the eldest hand may, without consulting with his partner, claim a
new deal.
If, after the deal has been completed and before a card is led, any
player shall expose a card, his partner shall forfeit any right to
double or re-double which he otherwise would have been entitled to
exercise; and in case of a card being so exposed by the leader's
partner, the dealer may either call the card or require the leader not
to lead the suit of the exposed card.
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