Southwater currently has 15 mapped postboxes recorded by The Postbox Hunter. The postboxes in Southwater include 3 recorded royal cyphers. The most common is EIIR, recorded on 8 postboxes, representing 53.3% of the mapped total. The complete recorded cypher list is: EIIR (8), EVIIR (3) and VR (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 Lamp, with 6 mapped examples. The data contains 3 different recorded postbox types. This information is generated from the latest postbox location and tagging data available to The Postbox Hunter.