Private boxes emptied by Royal Mail do not need to carry a cypher. Royal Mail post boxes created due to the fact 1994 have the wording 'Royal Mail', Usually higher than the aperture (lamp boxes) or within the doorway (pillar boxes). Ahead of this date all put up boxes, apart https://josuefmuah.blogoxo.com/26795566/the-2-minute-rule-for-letter-boxes-for-sale