PUBLIC CALL OFFICE
| |||||||
The problem with posters and notices is when and how were they used. Many have a date and GPO code at the bottom. CO plus a number is the code, whilst some are dated with letters or just numbers (i.e. 9/63). Another way to date these is to check the notice text for the value of coins to be used and when to use them. Inserting coins before making a call is an A&B coinbox, whilst inserting the coins when the call is answered would be a 700 type coinbox. The number of coins to be inserted is also a good indicator of age. The coin-box charge for a 1-unit call went up from 2d to 3d on 1st October 1951 (the coin-box fee added to timed trunk calls also went from 2d to 3d at this time). The increase from 3d to 4d was on 1st January 1957. Also be aware that the notices would change depending on what type of exchange the coinbox was connected to. Once again check the bottom of the notice. DIR = Director (London, Leeds etc), ND = Non-Director (big towns and cities), UAX = Unit Automatic Exchange (Small villages and towns). Notices like these were only fitted when the coinbox was fitted to exchanges that required a dial. The codes were required so the user could route the call to the required exchange.
|
|||||||
Last revised: December 31, 2024FM |