This model was the beginning of red telephone boxes as we know them. It was an internal model with an age of around the late 1800's to the early 1900's (pre- 1910) made entirely or hard wood tongue and groove boards with an ornate half glazed door. These were found inside buildings like PMG mailing rooms, pubs and shops. These are some of the rarest forms of red telephone boxes and have been dubbed the "coffins" based on the fact that they were very small, and very poorly lit with little to no natural light. Ventillation was also very poor in these models seeing them being quickly converted to half glazed and fully glazed models.