Harrison
DP numbers are the copyright of the MBPC and are used with their permission.
ACP = Advanced coated paper

PVAD = Polyvinyl alcohol acetate dextrin gum

FCP = Fluorescent coated paper
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HD1, HD1ns or HD2 - 15p Light blue, FCP/PVAD, 4mm 'A' phosphor centre band, upright print (Cyl 3) (Harrison/photo) - S.G specialised W788 - Concise 1467
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HD1ns Non screened value from sheets cylinder 3 [10.1.90] - Deegam A150.1.1 - Stoneham PB1
HD1 Screened value - Deegam A150.1.1a - Stoneham PB1a
HD2 Screened border - Deegam A150.1.1b

HD3 or HD4 - 15p Light blue, 4.5mm 'A' phosphor centre band, imperf top (DP140) (Harrison/photo) - S.G specialised W788b - Stoneham PB2
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HD4 Imperf top, non screened value from booklet pane DP140 [30.1.90] Deegam A150.1.2
HD3 Iimperf top, screened value - Deegam A150.1.2a

HD5 or HD6 - 15p Light blue, 4.5mm 'A' phosphor centre band, imperf bottom (DP140) (Harrison/photo) - Stoneham PB3
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HD6 Imperf bottom, non screened value from booklet pane DP140 [30.1.90] - Deegam A150.1.3
HD5 Imperf bottom, screened value - Deegam A150.1.3a

HD8 - 15p Light blue, FCP/PVAD, 3mm 'A' phosphor inset left band (DP137) (Harrison/photo) - Deegam A150.2.1 - S.G specialised W789a - Stoneham PB4a
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3mm 'A' phosphor inset left band from position 2 booklet pane DP137 [30.1.90]

HD7 or HD8a - 15p Light blue, FCP/PVAD, 4mm 'A' phosphor left band (DP137) (Harrison/photo) - S.G specialised W789 - Stoneham PB4 - Concise 1468
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HD8a 4mm 'A' phosphor left band from position 2 booklet pane DP137 [30.1.90] - Deegam A150.2.1a
HD7 4mm 'A' phosphor left band from position 4 - Deegam A150.2.2

HD10 - 15p Light blue, FCP/PVAD, 'A' phosphor right band (DP147) (Harrison/photo) - Deegam A150.4.1 - S.G specialised W790 - Stoneham PB5 - Concise 1468Ea
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'
'A' phosphor right band frrom London Life prestige panes DP147, DP147A [20.3.90]

HD11 or HD13 - 20p Black, ACP/PVAD, upright print (Cyl 1A1B) (Harrison/photo) - S.G specialised W791 - Concise 1469
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HD11 Normal paper from sheets cylinder 1A1B [10.1.90] - Deegam A200.1.1 - Stoneham PB8
HD13 Low OBA paper Deegam A200.1.1a - Stoneham PB8b

HD12 or HD12a - 20p Black, ACP/PVAD, inverted print (DP146, 148) (Harrison/photo)
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HD12 Normal paper from London Life prestige panes DP146, 148 [20.3.90] - Deegam A200.1.6
HD12a Low OBA paper - Deegam A200.1.6a

HD14 - 20p Black, ACP/PVAD, Imperf top, upright print (DP141) (Harrison/photo) - Deegam A200.1.4
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Imperf top from booklet pane DP141 [30.1.90]

HD16 - 20p Black, ACP/PVAD, Imperf bottom, upright print (DP141) (Harrison/photo) - Deegam A200.1.5
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Imperf bottom from booklet pane DP141 [30.1.90]

HD18 - 20p Black, ACP/PVAD, Imperf left, sideways print right (DP138) (Harrison/photo) - Deegam A200.1.2 - Stoneham PB13
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Imperf left from booklet pane DP138 [30.1.90]

HD19 - 20p Black, ACP/PVAD, Imperf right, sideways print right (DP138) (Harrison/photo) - Deegam A200.1.3 - Stoneham PB14
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Imperf right from booklet pane DP138 [30.1.90]

HD20 or HD20a - 20p Black, ACP/PVAD, Imperf top, sideways print right (DP149) (Harrison/photo) - Stoneham PB9
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HD20a Imperf top, APS perforation from booklet pane DP149 [17.4.90] - Deegam A200.1.7
HD20 Imperf top, Comb perforation - Deegam A200.1.7a

HD24 or HD24a - 20p Black, ACP/PVAD, Imperf top & right, sideways print right (DP149) (Harrison/photo) - Stoneham PB10
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HD24a Imperf top & right, APS perforation from booklet pane DP149 [17.4.90] - Deegam A200.1.8
HD24 Imperf top & right, Comb perforation - Deegam A200.1.8a

HD22 or HD22a - 20p Black, ACP/PVAD, Imperf bottom, sideways print right (DP149) (Harrison/photo) - Stoneham PB11
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HD22a Imperf bottom, APS perforation from booklet pane DP149 [17.4.90] - Deegam A200.1.9
HD22 Imperf bottom, Comb perforation - Deegam A200.1.9a

HD26 or HD26a - 20p Black, ACP/PVAD, Imperf bottom & right, sideways print right (DP149) (Harrison/photo) - Stoneham PB12
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HD26a Imperf bottom & right, APS perforation from booklet pane DP149 [17.4.90] - Deegam A200.1.10
HD26 Imperf bottom & right, Comb perforation - Deegam A200.1.10a

HD27a - 20p Black, ACP/PVAD, sideways print left (DMS1 miniature sheet) (Harrison/photo) Deegam A200.1.11 - Stoneham MS6 - Concise MS1501
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From miniature sheet DMS14 [4.5.90]

HD33 - 20p Black, FCP/PVAD, two 4.75mm 'A' phosphor bands, sideways print right (DP137) (Harrison/photo) - S.G specialised W792 - Concise 1470
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Two 4.75mm 'A' phosphor bands from booklet pane DP137 [30.1.90]

HD31 - 20p Black, FCP/PVAD, 3mm 'A' phosphor inset left band and full band right with both bands short at top (S16 + i1), sideways print right (DP137) (Harrison/photo) Deegam A200.2.1
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3mm inset left band and full band right with both bands short at top (S16 + i1) from booklet pane DP137 [30.1.90]

HD32 - 20p Black, FCP/PVAD, 3mm 'A' phosphor inset left band and full band right (i1), sideways print right (DP137) (Harrison/photo)
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3mm 'A' phosphor inset left band and full band right (i1) from booklet pane DP137 [30.1.90]

HD28 or HD29 - 20p Black, FCP/PVAD, two 4.75mm 'A' phosphor bands, inverted print (DP147A) (Harrison/photo)
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HD29 11mm gap between phosphor bands from London Life prestige pane DP147A [20.3.90] - Deegam A200.2.2
HD28 10mm gap between phosphor bands - Deegam A200.2.2a

HD34 - 29p Purple, ACP/PVAD (Cyl 1) (Harrison/photo) - Deegam A290.1.1 - S.G specialised W793 - Stoneham PB16 - Concise 1471
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From sheets cylinder 1 [10.1.90]

HD35 - 29p Purple, FCP/PVAD, two 4.75mm 'A' phosphor bands (DP147) (Harrison/photo) - Deegam A290.2.1 - S.G specialised W796 - Stoneham PB7 - Concise 1472
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Two 4.75mm 'A' phosphor bands from London Life prestige panes DP147, DP147A [20.3.90]

HD36 - 34p Slate blue, ACP/PVAD, screened value (Cyl 1) (Harrison/photo) - Deegam A340.1.1 - S.G specialised W794 - Stoneham PB17 - Concise 1473
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Screened value from sheets cylinder 1 [10.1.90]

HD39 - 37p Red, ACP/PVAD (Cyl 1) (Harrison/photo) - Deegam A370.1.1 - S.G specialised W795 - Stoneham PB18 - Concise 1474
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From sheets cylinder 1 [10.1.90]