Great Britain Machins by Adminware

20p purplish grey

Water-activated gum
First seen: Feb 25, 1976

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Also exists:

20p olive green (Large size)
20p sea green
20p black
20p black and cream (Anniversary)
20p black (no cream) (Anniversary)
20p light green
20p light green (Data Matrix Code)

Paper		Printer	Other identification	Value setting	Issue date	Source	Gum

ACP	Lithography	Waddington	Perf. 13½x14	T1	Feb 1986	Sheet	Dex
PCP	Lithography	Waddington	Perf. 13½x14	T1	Nov 1, 1981	Sheet	Dex
PCP1	Photogravure	Harrison & Sons		T1	Oct 10, 1979	Sheet	Dex
PCP2	Photogravure	Harrison & Sons		T1	Dec 1980	Sheet	Dex
2-band (9.5mm) phosphor
FCP	Photogravure	Harrison & Sons		T1	Feb 25, 1976	Sheet	Dex
FCP	Lithography	Waddington	Perf. 13½x14	T1	May 21, 1980	Sheet	PVA

Stamps are perforated 14¾x14 unless otherwise noted.

20p purplish grey

Narrow value
First seen: May 13, 1986

Questa / Lithography

Paper	Other identification	Value setting	Issue date	Source	Gum	Pic?	Checklist	Want?

ACP		T2	May 13, 1986	Sheet	Dex

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Booklet pane numbers used courtesy the Modern British Philatelic Circle
who publish 'The Bookmark' Catalogue