RE Series No 27
Date: 13 August 1975.
Title: Longmoor Military Railway 70th Anniversary.
Type: First Day Issue - Commemorative Cover.
Stamps: Single stamp: 7ᵖ Stockton and Darlington Railway commemorative, issued 13 August 1975.
Special Handstamp: Corps of RE 70th Anniversary Longmoor Military Railway BFPF 1396, WIMR monogram in centre.
Note: The initials shown on the Special Handstamp, WIMR, stand for Woolmer Instructional Military Railway. This was the original name of the railway up until 1935.
See: Wiki: Longmoor Military Railway - http://en.wikipedia.org/wiki/Longmoor_Military_Railway