WW1 North Eastern Railway war service badge

A scarce original First World War period '1914-1918 gilt and enamel circular badge, 'North Eastern Railway' blue enamel title surround, Crowned 'Railway Service' to the centre on white enamel ground, the reverse impressed with maker's details 'Thos. Fattorini Bolton' and official issue number '10760'. Good condition, complete with original buttonhole fitting, enamel with minor service wear.