It looks unused. It is OO gauge. The instructions are missing, they can be found on the Dapol website.
Dapol 2L-002-001 LMS Home Single Post Signal
SIGNAL LMS HOME Single Post Semaphore with LED Easi-Fit N Dapol 2L-002-001
Dapol LMS Home Motorised Signal OO Gauge DA4L-002-001
Dapol 4L-002-001 LMS Home Motorised Signal
Dapol 7L-002-002 Working Mortorised LMS Home Signal Steel Arm O Gauge
Dapol LMS Home Motorised Signal OO Gauge
