Proof Specimen Block of Four ½d. in purple and black, a block of four on gummed unwatermarked paper, each overprinted "SPECIMEN", fineB.P.A. Certificate (1980) | Christie's

Lot 443

443

Proof Specimen Block of Four ½d. in purple and black, a block of four on gummed unwatermarked paper, each overprinted "SPECIMEN", fineB.P.A. Certificate (1980)

Details

Proof Specimen Block of Four ½d. in purple and black, a block of four on gummed unwatermarked paper, each overprinted "SPECIMEN", fineB.P.A. Certificate (1980)

Provenance

J.F. Ayre, 1979