Machin Definitives
1d, bisected (Batty) [N] 46(2)35, (Knight) [S] 46(4)95
2nd class, proof (Kibby) [L] 52(6)121
2½p, pink, misplaced phosphor (Daniels) [N] 34(1)18
5p, bisected (Jackson) [S] 46(2)35
6d, Pre‑Decimal, study (Walker) [L] 51(1)15
12p, emerald‑green, Cyl. 9 no dot (Daniels) [N] 34(1)18
14p, dry print (Holt) [N] 27(5)98
— imperf (Holt) [N] 27(5)98
25p, genuine but declared fake by Royal Mail Revenue Protection (Jackson) [S] 52(5)99
Book review, 40 Years of Machins – A Timeline. Myall (Jackson) [R] 45(4)90
— A Timeless Classic: The Evolution of Machin's Icon. Muir (Jackson) [R] 45(4)84
— Postal Usage of the decimal Machin series 1971‑1996 (two vols). Nicholson (Sherman) [R] 36(1)20
— Postal Usage of the pre‑decimal Machin series 1969‑1971. Nicholson (Sherman) [R] 36(1)20
— The Complete Deegam Machin Handbook, 3rd edn, Myall (Barnes) [R] 41(6)110
Booklet pane, miscut (Daniels) [N] 31(5)96
Booklet varieties (Cooter) [S] 33(1)12
Booklet, sheet layout on plastic film (McGill & Deering) [L] 56(2)26
Booklets, 50p folded (Bainbridge) [M] 29(5)92
Cambridge University colour trials of 1969 (Walker) [L] 48(3)63, (Walker) [L] 48(4)92, (Walker) [L] 48(5)123
Colour, 4p, Jeffery Matthews palette (Myall) [L] 40(6)108
De La Rue transitional printings 2002–2007 (Kibby) [L] 59(1)3
Decimal book cover essays (Harvey) [M] 58(6)135
— and proofs — update (Harvey) [M] 59(3)52
Decimal book cover proofs (Harvey) [L] 59(1)14
Disability trials (Alexander) [M] 53(1)21
Display, 3 Mar. 1990, Machins by Andrew J. Watton (Kirk) [S] 28(4)87
Dollis Hill Find, an amplification (Barnes) [M] 52(1)22, (Klempka) [S] 52(1)23
Ensched<130> printings 1991 (Bainbridge) [S] 31(3)55
General account (SWL90) [M] 28(2)50
Perforation, 13p with four straight sides (Wolfson) [N] 35(2)39
Postal history (Lockton) [L] 39(2)23
Proof, 2nd class (Kibby) [L] 52(6)121, (Alexander) [M] 53(1)21
Self‑adhesive NVI, 1998, 'dagger' perforations (Jackson) [S] 40(4)70, (Smith) [M] 41(1)20
£5, 2003 unissued £5 Sepia (Setaro) [M] 61(3)66