Personal boxes emptied by Royal Mail do not have to hold a cypher. Royal Mail submit boxes created because 1994 carry the wording 'Royal Mail', Generally above the aperture (lamp boxes) or around the door (pillar boxes). Just before this date all submit boxes, except the Nameless pillar boxes, carried https://letterboxesaustralia51592.wikicorrespondence.com/2304462/the_letter_boxes_australia_diaries