Single Line brass Key Token NAIRN - MILLBURN JN No 3 (configuration C ?). Ex Highland Railway section between Nairn and Inverness Millburn Junction. Dating from 12th March 1967 when the line was reduced to single track. Millburn Junction Signal Box was closed on the 8th March 1987 when control was transferred to Inverness SC and the section became worked by Track Circuit Block. Brass construction, ex box condition.