Proof ½d. to £1, the set of nine in black on wove paper with each showing central horizontal guide lines. A fine and unique group. Photo

Details
Proof ½d. to £1, the set of nine in black on wove paper with each showing central horizontal guide lines. A fine and unique group. Photo
Provenance
Dr. Dudley Stone
J.M. Perkin, 1949
C.G. Mummery, 1955