Catbrain currently has 25 mapped postboxes recorded by The Postbox Hunter. The postboxes in Catbrain include 4 recorded royal cyphers. The most common is EIIR, recorded on 11 postboxes, representing 44% of the mapped total. The complete recorded cypher list is: EIIR (11), GVIR (9), GR (2) and VR (2). 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 20 mapped examples. The data contains 3 different recorded postbox types. Across the available tagging data, 1 design are represented. This information is generated from the latest postbox location and tagging data available to The Postbox Hunter.