THE POST OFFICE TRUNK TELEPHONE SYSTEM AT BRISTOL. THE COLUMBIA STAMPING MACHINE.

The Post Office in Bristol commenced to undertake telephone business in 1896. It began with trunk telephone lines working to Bath, Birmingham, Cardiff, Exeter, London, Taunton, and Weston-super-Mare. At the outset the conversations averaged about 170 daily. In that same year the department took over from the National Telephone Co., Cardiff, Gloucester, Newport and Sharpness lines, and the conversations soon increased to nearly 400 per day. At the present time the department has from 1 to 5 (according to size of town) trunk lines to Bath, Bradford-on-Avon, Birmingham, Cardiff, Exeter, Gloucester, London, Lydney, Plymouth, Newport, Sharpness, Southampton, Swansea, Taunton, Tiverton, and Weston-super-Mare. An increased number of wires has had marked effect in diminishing the delays which at first occurred through paucity of trunk lines, but as the business is constantly increasing, the department is still looked to for additional lines. That the better accommodation is appreciated, however, is indicated by the fact that now the Bristol conversations average nearly 1,500 a day, or considerably over a quarter of a million a year. On Sundays the trunk telephones are available, but use is made of them only to a small extent, there being only about 150 conversations per Sunday. The total number of trunk wire transactions throughout the kingdom during the last year, according to the Postmaster General’s annual report, was 13,467,975, or, reckoning each transaction as involving at least two spoken messages, a total number of 26,935,950 (an increase of 16.3 per cent. over that of the preceding year). The revenue was L325,525 (an increase of 18.4 per cent.), and the average value of each transaction was 5d. There is a silence box in the Public Hall of the Bristol Post Office, from which conversations can be held with all parts of the Kingdom, with Belgium and France. Of course, the greater number of trunk line telephone conversations are held through the medium of the National Telephone Company’s local exchange, but many important Bristol firms have contracted with the Post Office for private telephone wires in actual connection with the trunk line system, independent altogether of the National Co.’s exchange.

The intermingling of the National Telephone business with that of the Post Office telegraphs has had a further development in a system under which subscribers to the National Company telephone communications to the Post Office to be sent on thence as telegrams over Post Office telegraph wires. This privilege is taken advantage of at Bristol to the extent of seven or eight hundred messages weekly. The accession of the trunk telephone business to the already over-crowded office has had the effect of necessitating the detachment of some part of the staff from the Post Office headquarter premises in Small Street, and the friendly relations between the Telephone Company and the Post Office have been further strengthened by the Bristol Post Office having taken certain rooms in the headquarters of the National Telephone Co., and located its Returned Letter Office therein.

Another new feature in Post Office development is the use of Stamping Machines for the rapid obliteration of the postage stamps and for the impression of the day’s date on letters. Quite recently a machine of the kind has been introduced into the Bristol Post Office. The machine, which is of modern invention, goes by the name of the “Columbia” Cancelling Machine, and is manufactured by the Columbia Postal Supply Company, of Silver Creek, New York, U.S.A. It is said to be in use in many Post Offices in the large towns of America and other countries. The public will no doubt have noticed the new cancelling marks on the postage stamps, as the die and long horizontal lines are very striking. The cancelling and date marking operation is performed at the rate of 400 or 500 letters per minute. The motor power of the machine is electricity.