1925 30c, size H, ‘Giraffe’ registration envelope diagonally overprinted SPECIMEN on reverse, fine condition.
1925 30c, size H, ‘Giraffe’ registration envelope diagonally overprinted SPECIMEN on reverse, front bearing archival 1926 at top; central vertical crease
1925 30c, size H, ‘Giraffe’ registration envelope diagonally overprinted SPECIMEN on reverse, front bearing archival 1926 at top; central vertical crease