Date: 29 December 1977.
Title: 195th Anniversary of 'Ince's Tunnel'.
Type: Commemorative Cover.
Stamps: 8½ᵖ "Silver Jubilee" commemorative, issued 11 May 1977.
Cachet: Ince's Tunnel, 195th Anniversary.
Special Handstamp: Corps of RE, Commemorating Ince's Tunnel, BFPS 1575, silhouette of crossed pick and shovel in centre.