unused -- 1948 (July-Dec.) 1a. on 4a. and 1a. on 8a. (marginal), fine mint. S.G. O16, O17, £500

Details
unused -- 1948 (July-Dec.) 1a. on 4a. and 1a. on 8a. (marginal), fine mint. S.G. O16, O17, £500