細節
Two fine signal position indicators,
one lettered 'Down Signal AT', the other 'Up Signal AT' with white and green dials and 'Home' signals, in varnished wood cases. Each -- 17½in. (44.5cm.) (2)
one lettered 'Down Signal AT', the other 'Up Signal AT' with white and green dials and 'Home' signals, in varnished wood cases. Each -- 17½in. (44.5cm.) (2)