Documents duly sealed to be admitted in evidence without further proof

Any document, purporting to have affixed, impressed, or subscribed thereon or thereto the seal and signature of any person authorised by section 46 or 47 to administer an oath in testimony of any oath or affidavit being administered or taken by or before him, shall be admitted in evidence without proof of the seal or signature being the seal or signature of that person, or of the official character of that person.