Jones 50-line switchboard, 1879.
1879
Edison telephone peg switchboard and pegs, 1879
1879
Switchboard PMBX 2+6 lind; PMBX 2/2A
Twenty-line switchboard, magneto cord
Two-line switchboard
Murray switchboard
Switchboard, with ten lines
Steel Iolanda switchboard, with light bulb and shade
1900-1950
Aron Electricity meter switchboard type
AC relay to switchboard used on old magneto circuits to ring exchange
Sinclair Line Selector Automatic Switch Board, 1886
1886
Eight-line switchboard
Marine charging switchboard, 1900-1950
1900-1950
Westinghouse switchboard A.C. Voltage indicator
electricity substation switchboard
1939
Metal Iolanda switchboard, 1900-1950
1900-1950
Distribution switchboard installed about 1890 in Lord Brassey's house
Switchboard PABX (ref SA8133)
3 phase switchboard meter
D.C. Switchboard (1887) by Veritys of Covent Garden
Switchboard from Windsor Castle
Generator switchboard with main switch
A typical pre-1914 main switchboard
1914
Operator's switchboard used in conjunction with relay automatic P.A.B.X.
Section (3 positions) of a "Coded-Call Indicator" switchboard from a manual telephone exchange
Type 554 switchboard no. 3317
25-line rural automatic exchange switchboard UAX5 Mark 236 (c.1930)
1930
1902 lighting switchboard from Gloucester Cathedral
1902
Switchgear with associated voltmeters and additional ammeters
circa 1930s
Switchboard T 242C no. 14689
Mahogany switchboard mounted with circuit breakers
Switchboard
1900
ATM cordless telephone switchboard. C.1960
circa 1960
6-way weatherproof pyrometer switchboard
1900-1982
Switchboard by Newton, 1895
1895
Cord Switchboard with Lamp Signalling Type 4/1A by The Plessey Co. Ltd.
Two switchboards type 1052B
Type 242E switchboard no. 4316
Thirty-line telephone switchboard
Original switchboard from the Mansion House
1891
P.B. switchboard type maximum demand indicator (coiled spring thermal type)
383 Switchboards (2)
three wood and glass cupboards
Crompton House-Lighting Switchboard
1890