Wg Cdr R J Hutchings signed No 511 Sqn cover commemorating the 30th Anniversary of Formation of the Squadron. Flown from RAF Brize Norton to RAF Gibraltar and back in Britannia aircraft of No 511 Squadron. 3 1/2p GB stamp postmarked Forces Post Office 965 10th October 1972. 5p Gibraltar Bicentenary of Royal Engineers in Gibraltar stamp postmarked Gibraltar 11. 10. 72-16. Good Condition. All signed pieces come with a Certificate of Authenticity. We combine postage on multiple winning lots and can ship worldwide. UK postage from £3.99, EU from £5.99, Rest of World from £7.99.