(a) a certificate containing the substance and effect only, omitting the formal part of the indictment and conviction, in the case of an indictable offence, or a copy of the summary conviction, or of the note or memorandum thereof, in the case of an offence punishable upon summary conviction, purporting to be signed by the clerk of the Court or other officer having the custody of the records of the Court in which the conviction, was had or returned;