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Plans of Telephones Exchanges. Western exchange

Reference: D/AL/A2/2086

Date: 1948 - 1952

Plans of Telephone Exchanges. Central

Reference: D/AL/A3/2310

Date: 1962

Proposed automatic telephone exchange at Minden Place.

Reference: D/AP/AG/1

Date: 4 April 1957

Automatic telephone exchange foundation and drainage plan

Reference: D/AP/AG/2

Date: 17 April 1957

Plans of Telephone House, Minden Place referred to in an act of the States

Reference: D/AP1/A1060/8/5(11)

Date: 24 February 1976