A copy of the enrolment of every such deed, decree, writing, or other instrument as aforesaid, signed by the proper officer having the custody of such enrolment, and proved upon oath to be a true copy, shall for every purpose whatsoever be sufficient evidence of the contents of such deed, decree, writing, or other instrument, in all courts of law and equity, and on every other occasion whatsoever shall be of the same force and effect, to all intents and purposes, as such deed, decree, writing, or other instrument would be if the same were respectively produced and shown forth.