½d Die 1a
Control A 11 (close) (Jackson) [N] 21(1)6
— Control A 11 (close), unconfirmed (Jackson) [N] 23(2)32
Control plating aid (Jackson) [S] 21(1)5
Double print (Jackson) [N] 26(1)15
— partial (Jackson) [N] 27(5)97, (Wiseman) [C] 28(3)62
Perf. 14, at auction (Jackson) [M] 38(5)85
— control copy (Hunt) [S] 31(4)63
— postmarked Exeter (Mark) [S] 59(2)42
— survey (Mark) [L] 31(1)15
Plate 2 (Official Plate 7/7), markings (Jackson) [N] 23(2)32
Plate marks, on sheet stamps (Jackson) [L] 60(3)56
Plate numbers, official (Jackson) [N] 21(1)7
Plate wear (Jackson) [N] 26(1)16
Plates, study of (Jackson) [L] 21(1)6
Variety, Plate 4, R18/1, gash on dolphin's tail (Jackson) [N] 23(2)32
— damage at upper left (Dent) [S] 41(2)40
Watermark, inverted (Jackson) [N] 26(1)15