Great Britain 1964 2½d 20th International Geographical Congress (Phosphor), SG651p var.
Superb unmounted mint with full original gum imperforate bottom left hand corner marginal cylinder block of four imprimaturs 'Cyl.3D-1C-1B-1A' with 'British Postal Museum and Archives' handstamps on reverse.
A remarkable and unique item.
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.