(1) Whenever the Commissioners determine to discontinue the use of any die, and provide a new die to be used in lieu of the discontinued die, and give public notice of their determination in the Iris Oifigiúil, then from and after any day to be stated in the notice (such day not being within one month after the same is so published) the new die shall be the only lawful die for denoting the duty chargeable in any case in which the discontinued die would have been used and every instrument first executed by any person, or bearing date after the day so stated, and stamped with the discontinued die, shall be deemed to be not duly stamped.
(2) Whenever the Commissioners give public notice in the Iris Oifigiúil that the use of any die has been discontinued, then, whether a new die has been provided or not, from and after any day to be stated in the notice (that day not being within one month after the notice is so published), that die shall not be a lawful die for denoting the payment of d
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