Box A Block Switch, wood, with brass fittings, LMSR type, usec to switch box A out of section between box T and box B. Located on model railway layout, gauge 1, Lancashire & Yorkshire Railway Signalling School, built 1912, by L&YR and Bassett-Lowke Ltd, with associated equipment. Lancashire & Yorkshire Railway Signalling School Model Railway Layout 1912
Block Switch, used to demonstrate the procedure of 'switching' the signal box in or 'out' of section; polished wood with brass fittings. Located on model railway layout, gauge 1, Lancashire & Yorkshire Railway Signalling School, built 1912, by L&YR and Bassett-Lowke Ltd, with associated equipment. Lancashire & Yorkshire Railway Signalling School Model Railway Layout 1912
Signalling instrument, block switch, for severing block section on closure of signalbox, unmarked Signalling Block Switch
Signalling instrument, block switch, for severing block section on closure of signalbox, unmarked Signalling Block Switch
London, Midland & Scottish Railway block switch for closing out signal box. Block switch, London Midland & Scottish Railway
