TELEPHONE No. 20 | ||||||||
 Wooden
table set fitted with a DC
trembler bell and calling key. The Telephone No. 22 is similar
except is has an upper gallery to make it more ornate.Made by Ericsson as their model BC2050. Thought to be introduced around 1896 and intended for use in hotels, offices and private systems only. The GPO Stores Rate Book 1928 advises that this telephone was used on the L.C.C. Fire alarm system and Salvage Corps circuits. The Handset was a Telephone No. 28. Similar to the Telephone No. 26. Circuit diagram - N120.
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Last revised: December 02, 2018FM | ||||||||