1s ultramarine with 'Horseshoe' overprint in black, a fine IMPERF PLATE PROOF on thin white paper. Ex ABNCo. archive. Very scarce. (SG 204)
1s ultramarine with 'Horseshoe' overprint in black, a fine IMPERF PLATE PROOF on thin white paper. Ex ABNCo. archive. Very scarce. (SG 204)