1855 1d Red (Die 1)
Archer‑perforated stamps, Plate 91, discovery (Simpson) [M] 48(1)4
— Plate 94, Gladstone to Disraeli cover (page numbered 48 in error) (Forbes‑Nixon) [M] 47(4)96
— Plate 108 on cover (Kibby) [M] 50(6)129
— Plate 111, new discovery (Simpson) [S] 48(4)81
— Wilkinson and Hill punch sets (Escott) [L] 52(4)77
— distribution and usage (Simpson) [L] 47(1)14, (Burgess) [M] 47(2)47, (Simpson) [M] 47(3)63
— distribution and usage, update (Simpson) [L] 60(1)1
— from Plate 95? (Williams) [L] 57(1)4
— number of recorded covers (Simpson) [L] 52(2)25
— on cover (Simpson) [M] 52(5)97
— on cover sent by Gladstone (Simpson) [M] 55(5)119
— statistical analysis (Chadwick) [S] 52(4)75
— unrecorded document (Simpson) [L] 55(6)134
Archer, post‑trial plates (Simpson) [C] 46(1)3
Dies, new difference between (Williams) [S] 29(5)98
Perforation, post‑trial Archer plates (Simpson) [L] 45(6)139, (Simpson) [M] 47(2)45
Plate 74, curious perforations (Simpson) [L] 48(3)70
Plate 108, Archer perf. on cover (Kibby) [M] 50(6)129