Provided always, and be That this Act, or any thing herein contained, shall not extend or be construed to take away, abridge, or diminish any Fees which are or may hereafter by payable upon the Enrolment of Deeds or other Instruments, or for the Use of or for making Copies of Records in the Office of the said Duchy; and the Council of His said Royal Highness shall have Power from Time to Time to fix the Amount of Fees to be paid for the Use of the said Records, and for making Copies thereof.