Proof Block of Four  1d. black, die II, plate 27, GA-HB block of four, good to very large margins; very light overall surface toning, HA with trace of surface rubbing at left frame, otherwise fine. S.G. Spec. DP36. Photo
1872 South Kensington Exhibition Proofs
Proof Block of Four 1d. black, die II, plate 27, GA-HB block of four, good to very large margins; very light overall surface toning, HA with trace of surface rubbing at left frame, otherwise fine. S.G. Spec. DP36. Photo

細節
Proof Block of Four 1d. black, die II, plate 27, GA-HB block of four, good to very large margins; very light overall surface toning, HA with trace of surface rubbing at left frame, otherwise fine. S.G. Spec. DP36. Photo