Australian Post Office souvenir cover for Papal Visit, Cat No SE108, 105 mm x 190 mm, over-printed THE MCG HAS ALWAYS BEEN CATHOLIC!, postage paid imprint (MCG/Olympics) approved by Australia Post on 10 October 1986. llustrated two-colour card insert light-heartedly recalls the diverse events staged at the Stadium, limited numbered edition of 300 officially authorised by the Papal Visit Office.