1841 1d Red (Die 1)
1853 Government trial perforation (Lajer) [N] 37(5)99, (Simpson) [M] 38(1)6
— Plate 74 block of 28 (Sargent) [M] 38(3)46
Archer's first machine — interpreting the evidence (Simpson) [M] 59(2)25
Archer's rouletting machines, response (Escott) [M] 59(1)1
Archer, rouletting machines (Simpson) [L] 58(6)139
Cancelled with Moreton Hampstead Penny Post (Vaughan) [S] 46(6)137
Deliveries, early (Messenger) [M] 33(1)14
Dies, new difference between (Williams) [S] 29(5)98
FG, line through F square (Jackson) [S] 42(4)89
Ink, of the 1d Red (Slattery) [L] 51(6)121, (Slattery) [L] 52(1)14
Maltese Cross, red on 1d red‑brown, repaired stamp (Jackson) [M] 53(2)34
Marginal markings (Lyon) [N] 35(2)39, (Lyon) [C] 36(1)16
Nissen reconstructions, incl. corrections (Jackson) [M] 51(3)70
Plate 1, TI and IB, new State 4 (Maunder) [M] 61(5)115
Plate 5, plate allocations (Patmore) [L] 61(3)68
— repairs (Maunder) [M] 51(2)35, (Maunder) [C] 51(6)137
Plate 9, early repairs (Maunder) [L] 57(3)50
— usage (Fisher) [M] 51(1)12
Plate 10, inverted watermark (Lewthwaite) [S] 39(4)70
— perforation experiment (Jackson) [N] 48(4)89
Plate 11, TI (Jackson) [N] 44(2)34
— TI, extra dot after PENNY (Jackson) [S] 43(6)136
— plate allocations (Patmore) [L] 61(3)68
Plate 12, earliest date (Willcocks) [S] 34(6)113
Plate 13, number issued (Boas) [M] 27(2)32
Plate 18, imperf. and wmk inv. (Reid) [N] 29(5)97
Plate 20, SJ, triple S (Batty) [S] 35(4)80, (Batty) [S] 50(2)48
Plate 25, KL variety D over L (Bird) [N] 22(2)23, (Atkinson) [N] 22(5)69
Plate 36, PG, re‑entry (Cassell) [M] 53(4)86
Plate 37, AJ, correction to Plating of the Penny (Chappell) [N] 26(4)76
Plate 40, KB (Hollins) [L] 47(3)65
Plate 47, corrections to The Plating of the Penny (Fisher) [N] 24(2)19
Plate 49, TE‑TG (Treacey) [M] 50(3)64
— TF, State 2 (Witham) [S] 41(1)7
— — States 1 & 2 (Calver) [M] 41(5)108
Plate 64, CK (Hanson) [S] 38(4)78, (Witham) [S] 38(5)87
Plate 66, AD, variety 'D over A' (Maskrey) [S] 43(5)97
Plate 70, Archer's first roulette fingerprint (Escott) [M] 57(5)100
— rouletted by Archer's first machine (Escott) [L] 56(2)42
Plate 71, Archer's first roulette fingerprint (Escott) [M] 57(5)100
— rouletted by Archer's first machine (Escott) [L] 56(2)42
— second state (Witham) [S] 24(3)36
Plate 74, 1853 Government trial perforation, block of 28 (Sargent) [M] 38(3)46
Plate 75, 'Union Jack' re‑entry in mint 'Bornefeld Block' (Louis & Jackson) [M] 54(4)93
Plate 77, B‑blank (Jackson) [S] 51(2)48
— B‑blank, (illustration) (SWL90) [N] 28(2)33
Plate 79, 'H' flaw (Grafton) [S] 36(1)18
— HI, H over B? (Batty) [N] 35(2)40
Plate 104, FG (Witham & Lewthwaite) [S] 43(2)42
Plate 105, amendment to Plating of the Penny (Lewthwaite) [N] 44(3)54
Plate 106, JJ (Lewthwaite) [N] 27(5)96
— JJ, correction to Plating of the Penny (Bolzan) [N] 26(4)76
Plate 109, TI‑TJ (Lewthwaite) [M] 46(2)37
Plate 110, TI‑TJ (Lewthwaite) [M] 46(2)37
— amendment to Plating of the Penny (Lewthwaite) [N] 44(3)54
Plate 115, 'JJ', identified (Maunder) [M] 60(6)121
Plate 127, TJ (Lewthwaite) [N] 46(2)37
Plate 139, PK, correction to Plating of the Penny (Kirk) [N] 26(4)76
Plate 142, LL (Witham & Lewthwaite) [S] 43(2)42
— LL, re‑entry? (Jackson) [S] 42(4)89
Plate 148, JK (Jackson) [N] 44(2)34
Plate 148?, JK, missing from imprimatur (Maunder) [S] 43(6)136
Plate 150, AI, missing imprimatur (Lewthwaite) [N] 27(5)96
Plate 155 (Chappell) [N] 33(1)18
Plate 156, perforated (Banwell) [N] 23(4)64
— perforated (not Plate 156) (Witham) [C] 24(2)21
Plate 157, MK, shadow entry (Batty) [N] 38(1)19
Plate 160, 161, perforated? (Folkard) [N] 21(4)51
Plate 163, EL (Lewthwaite) [N] 46(2)36
— serpentine ('Treasury') roulette, addition to Statham (Batty) [S] 48(1)23
Plate 164, AG, missing imprimatur (Lewthwaite) [N] 27(5)96
— KG, missing co‑ordinates (Griffin) [S] 41(2)23
Plate 165, AC, re‑entry (Chappell) [N] 29(2)38
— AE, second state (Witham & Treacey) [S] 39(5)100
Plate 169, IG (Maunder) [N] 46(2)36
Plate 170, Treasury Roulette on cover (Newroth) [L] 57(5)97
Plate 171, SJ, missing from imprimatur (Lewthwaite) [S] 43(3)59
— SK (Witham & Lewthwaite) [S] 43(2)42
— SK, Fisher‑Brown co‑ordinates (Jenkinson) [S] 42(4)90
— Treasury Roulette on cover (Newroth) [L] 57(5)97
Plate 186, imperf. (Lewthwaite) [S] 45(1)5
Plate 188, perforated (Witham) [N] 24(2)21
Plate 192, 193, perf. 14? (Folkard) [N] 21(4)51
Plate 197, SG, addition to Plating of the Penny (Fenning) [C] 28(4)80
Plate 202, SJ (Barrell) [N] 25(4)79
Plate 204, marginal markings (Lyon) [N] 35(2)39, (Lyon) [C] 36(1)16
Plates 46‑91, amendments to Plating of the Penny (Thompson) [S] 26(4)77
Plates 92‑131, amendments to Plating of the Penny (Thompson) [N] 26(4)76
Plates 155‑176, detailed study (Folkard & Johnson) [L] 30(1)10
Plates, seven different on same cover (Willcocks) [N] 23(3)47
Plating of the Penny, Mulready Group update, Vol. 1 (Maunder) [L] 56(5)105
— — Vol. 4 (Maunder) [L] 49(6)121
— — Vol. 5 (Maunder) [M] 51(6)134
Repairs, tabulation of repairs to black plates (Maunder) [L] 54(5)115, (Maunder) [C] 54(6)138
Roulette, serpentine ('Treasury'), discrepancies in NPM collection (Madden) [M] 31(1)11
Seal, stamp used as (Sudborough) [L] 51(4)80
Used abroad (Batty) [L] 49(4)73, (Batty) [L] 50(2)25
Used on 10 Feb. 1941 (100th anniv.) (Kaltwasser) [S] 41(5)102
Watermarks (Madden) [M] 34(1)1