Carlton currently has 67 mapped postboxes recorded by The Postbox Hunter. The postboxes in Carlton include 5 recorded royal cyphers. The most common is EIIR, recorded on 39 postboxes, representing 58.2% of the mapped total. The complete recorded cypher list is: EIIR (39), GR (12), GVIR (7), VR (2) and no (1). Among the recognised royal cyphers in the data, VR is the earliest recorded and EIIR is the most recent. The most commonly recorded postbox type is Pillar, with 31 mapped examples. The data contains 3 different recorded postbox types. Across the available tagging data, 6 designs are represented. This information is generated from the latest postbox location and tagging data available to The Postbox Hunter.