cover 1900 (Aug.) 2d. registered envelope (G size) to U.S.A. bearing, on reverse, 1897 2d. marginal block of four with central" MOCUDI/B.B." c.d.s.; some staining around adhesives though an unusual franking

细节
cover 1900 (Aug.) 2d. registered envelope (G size) to U.S.A. bearing, on reverse, 1897 2d. marginal block of four with central" MOCUDI/B.B." c.d.s.; some staining around adhesives though an unusual franking