24.5mm wide x 6mm high.
O GAUGE LMS DUCHESS TOP FEED
OO GAUGE Brass Top Feed And DOME For Combined Stanier Locomotive
LMS loco top feed 4mm scale 247 Developments ref. LP956
KW MODELS 'O' GAUGE KW107 BRISTOL OPEN TOP CAR MODEL KIT
Hornby O Gauge - electric Lamp Top for Level Crossings & Buffer Stops - red lens
Dapol 7B-000-011 O Gauge Bay Left Platform Stone Facing Tarmac/Paved Top