Guernsey - Alderney 1971 Postal Strike cover to Thailand bearing 1967 BAC One-Eleven 3d overprinted 'POSTAL STRIKE VIA THAILAND £6' cancelled with World Delivery postmark
Guernsey - Alderney 1971 Postal Strike cover to Thailand bearing 1967 BAC One-Eleven 3d overprinted 'POSTAL STRIKE VIA THAILAND £6' cancelled with World Delivery postmark