An Act for altering, explaining and amending an Act of the Forty-eighth Year of His Majesty's Reign, for granting Stamp Duties in Great Britain, with regard to the Duties on reissuable Promissory Notes, and on Conveyances on the Sale and Mortgage of Property; for better enabling the Commissioners of Stamps to give Relief in cases of spoiled Stamps; and to remit Penalties for exempting certain Instruments from Stamp Duty; and for better securing the Duties on Stage Coaches.