used Block of Four 1888 (May) "ONE/PENNY." on 2½d. ultramarine, a block of four with light "A12" obliterators; faintly stained, mainly on reverse, otherwise fine and scarce. S.G. 28. Photo

Details
used Block of Four 1888 (May) "ONE/PENNY." on 2½d. ultramarine, a block of four with light "A12" obliterators; faintly stained, mainly on reverse, otherwise fine and scarce. S.G. 28. Photo
Provenance
W.W. Forsyth, 1978