Single pneumatic ground disc signal, Southern Railway, by Westinghouse Brake & Signal Co, England. Single pneumatic ground disc signal
Ground disc signal, offten called a 'dolly' . The disc signals are used to controle shunting movments. This example is worked by Box A. 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
Ground disc signals sometimes called 'dollys' or 'dummy' are used to controle shunting movments; in this case between Box A siding and up main. 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