Proof of previous trial on trial for perjury

A certificate containing the substance and effect only, omitting the formal part, of the indictment and trial for any crime, purporting to be signed by the Registrar, shall, on the trial of any indictment for perjury or subornation of perjury, be sufficient evidence of the trial of the previous indictment, without proof of the signature or official character of the person appearing to have signed the certificate.