1881 1d Lilac
Advent of (Wiseman) [L] 46(3)49
Bisected (Gilbert) [M] 32(1)18
Bisects (Young) [M] 29(2)26, (Chadwick) [M] 29(4)74, (Latto) [M] 33(1)5, (Cunliffe) [S] 33(1)8, (Whitehead) [S] 33(1)9
— suggestion for diagonal perf. (Alexander) [N] 30(2)31
Colour trials (Young) [S] 22(1)5, (Young) [M] 52(6)136
Control, W (Young & Powell) [N] 21(6)83
— X (Young & Powell) [N] 21(6)83
— inverted X (Kirk) [S] 30(4)69, (Gilbert) [M] 33(4)70, (Messenger) [N] 33(4)72, (Wiseman) [N] 33(4)72
Display, 15 May 1993, Penny Lilac and Silver Jubilee (Gilbert) [L] 31(4)68
Fiscally pre‑cancelled (Taylor) [S] 34(5)97
Inks, earliest (Young) [L] 45(4)75, (Young) [L] 48(2)25
Interpane pillars (Young & Powell) [M] 21(6)81
Lantern slide (Young) [S] 23(5)69
Mirror images (Talbot) [M] 49(6)129
Numbering of sheets (Young) [M] 27(1)7
Offset, inverted, on 16 dots (Blank) [N] 28(5)101
Oxford Union Society, cover to Oxford solicitor with underprint (West) [M] 58(5)108
Paper crease (illustration) (SWL90) [N] 28(2)36
Perfin (Taylor) [S] 31(5)85
Plate flaw and retouch (Grimson) [N] 21(1)13
Post Office Savings Bank, use of 1d lilac (Young) [M] 48(4)82
— use with (Young) [M] 48(2)38, (Young) [M] 48(4)82
Transferred images (Talbot) [M] 49(6)129