Envelope with standardised address frame - has colour omitted from frame area with extra corner post code subframe

摘要

The envelope has a standardised address frame for an automatic sorting system at post offices. On its front side it has a visible surface for the address of the recipient. The frame is rectangular and is formed by omitting colour from an area of the envelope back surface. In the inside of the address frame (2) is located a smaller rectangular frame (3) which is also formed by omitting colour on the wrapping back surface. The subsection (4) enclosed in the smaller frame (3) is completely separate and is subdivided by colour free spaces of the wrapping back surface. It is used for a special postcode.