In the case of an election postponed under section 288 of the Act or adjourned under clause 383:
(a) ballot-papers already printed may be used for the election, even though they show the original date of the election and not the date to which the election has been postponed or adjourned, and
(b) the postal ballot-papers issued by the returning officer on or before or after the original date of the election and received by the returning officer up to 6 pm on the first business day following the new date of the election are to be produced by the returning officer at the scrutiny and counting of votes, and
(c) in the application of this Regulation, the new date of the election is taken to be the election day, and
(d) the ballot-papers of electors who have voted at a pre-poll voting office or at a declared institution before the original date of the election are to be produced by the returning officer at the scrutiny and counting of votes.