5 - the K5 - was introduced in 1934.
It was an attempt to make a cheaper and lighter version of the large and expensive K2, but trying to take the best of the Gilbert-Scott designed K3 and incorporate it into a more appropriate Kiosk just didn't work.
It was also intended to be a transportable kiosk, made of steel-faced plywood, which could be assembled and dismantled, for use at exhibitions and other temporary locations. It is not known how many were made, how many were actually used and none appear to have survived to the present day.
Taken from BT archives
Last revised: February 02, 2020