The Excise and Taxation Officer of any district through which a consignment of poppy-heads may be passing under cover of a transport pass, may on due cause being shown by the consignor, consignee or person incharge of the consignment, extend the period for which such transport pass to remain in force. Every extension of time so granted shall be endorsed upon the pass by the Excise and Taxation Officer granting it, and every such endorsement shall be dated and signed by him.
