Credits

Photography & images

We credit photographers and sources for transparency. Unsplash stock images below are used under the Unsplash License; attribution is not required by the licence, but we list it here.

• Hero image (homepage background)
  Contributor photo: Steve Poole aka Stavioni (Flickr album).
• Stock image (Learn, Help default Open Graph, and retained for reuse)
  Red mail box on street during daytime, Camellia Yang on Unsplash
• Marketing section image (heritage card on the homepage)
  Contributor photo: Steve Poole aka Stavioni (Flickr album).

Identification guide photos

Photos used in the Identification guide (royal cyphers and postbox forms) are credited below.

• Queen Victoria (VR)
  Wikimedia Commons (CC BY-SA 3.0)
• King Edward VII (E VII R)
  Mike Quinn, Geograph (CC BY-SA 2.0)
• King George V (GR)
  JThomas, Geograph (CC BY-SA 2.0)
• King Edward VIII (E VIII R)
  Mike Quinn, Geograph (CC BY-SA 2.0)
• King George VI (G VI R)
  Vclaw / Dan Sellers, Wikimedia Commons (CC BY-SA 3.0)
• Queen Elizabeth II (E II R)
  Wikimedia Commons (public domain)
• King Charles III (C III R)
  Norphil
• Pillar box
  Kitmaster, Wikimedia Commons (PD)
• Pedestal box
  Kitmaster, Wikimedia Commons (PD)
• Wall box
  Sebastiandoe5, Wikimedia Commons (CC BY-SA 4.0)
• Lamp box
  Phil Nash, Wikimedia Commons (CC BY-SA 4.0)
• Ludlow
  BazzaDaRambler / Ultra7, Wikimedia Commons (CC BY 2.0)
• Business box
  Sebastiandoe5, Wikimedia Commons (CC BY-SA 4.0)
• Parcel postbox
  sludgegulper / Oxyman, Wikimedia Commons (CC BY-SA 2.0)

Maps & geocoding

Map tiles and geodata are provided by OpenStreetMap. Address lookup (reverse geocoding) uses Nominatim.

• © OpenStreetMap contributors : map data and tiles (explore map, location maps, minimap).
• Nominatim : reverse geocoding for address/place names when adding a postbox or viewing a postbox location (usage policy).

Mapping software

Interactive maps are built with the following open-source libraries and assets.

• Leaflet : JavaScript map library (BSD-2-Clause). Used with React-Leaflet.
• Leaflet.markercluster : marker clustering on the map (MIT).
• Leaflet.Locatecontrol : “find my location” button (MIT).
• leaflet-color-markers (pointhi): coloured map marker icons (MIT).

Fonts

The site uses the Inter typeface for body text and UI.

• Inter : designed by Rasmus Andersson, served via Google Fonts (SIL Open Font License).

Other

Logo, identification-guide SVGs (royal cyphers), favicons, and default placeholder images are project-owned or created for PostboxMap. Some achievement badge images are from Vecteezy. Default map marker pin imagery is from the Leaflet project (see Mapping software).