1972 (04) Anniversaries - Hovercraft Trails Official (s) + British Hovercraft Corporation Meter Mark - WITH Cachet & Signed

Lovely Hovercraft Trails Official (s).

WITH the British Hovercraft Corporation Meter Mark on the rear and ALSO with the Anniversary Flight Cachet & the ALSO signed by the Officer Commanding....

This version is the rarest of the Single Stamp covers produced - only a very small number had the cachet and were signed....

Small 'ding' mark on the cover to the top left of the H/S corner - possibly from a paper clip?

Code: 62785