Stamp Act, 1899 — section 37

37. Admission of improperly stamped instruments..—2[The Provincial Government] may make rules providing that, where an instrument bears a stamp of sufficient amount but of improper description, it may, on payment of the duty with which the same is chargeable, be certified to be duly stamped, and any instrument so certified shall then be deemed to have been duly stamped as from the date of its execution.