Non elliptical perforations

DP numbers are the copyright of the MBPC and are used with their permission.

FCP = Fluorescent coated paper

PVAD (Dextrin) = Polyvinyl alcohol acetate dextrin gum

ACP = Advanced coated paper
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fd884

Two phosphor bands

FD884 - 50p ochre, FCP/PVAD, two 4.75mm B3 phosphor bands, upright print (Cyl 4) (Harrison/photo) - Deegam 500.1.1 - S.G specialised U426 - Stoneham M289 - Concise X921

Two 4.75mm B3 phosphor bands, upright print from cylinder 4 [2.2.77]

FD884s - 50p ochre, FCP/PVAD, two 4.75mm B3 phosphor bands plus phosphor streaks, upright print (Cyl 4) (Harrison/photo) - Deegam 500.1.1a

Two 4.75mm B3 phosphor bands plus phosphor streaks, upright print from cylinder 4
fd888

FD888 - 50p sand, FCP/PVAD, two 4.75mm 'A' phosphor bands, inverted print (DP147) (Harrison/photo) - Deegam 500.4.1 - S.G specialised U429 - Stoneham M292 - Concise X922

Two 4.75mm 'A' phosphor bands, inverted print from London Life prestige panes DP147, DP147A [20.3.90]
fd889

50p Ochre shade - No phosphor bands

fd889_value_setting

FD889 - 50p ochre, FCP/PVAD, KAMPF perforation, upright print (Cyl 4) (Harrison/photo) - Deegam 500.2.1 - S.G specialised U427 - Stoneham M290 - Concise X992

KAMPF perforation from cylinder 4 [21.5.80]
fd892

FD892 - 50p ochre, FCP/PVAD, APS perforation, upright print (Cyls 21, 28) (Harrison/photo) - Deegam 500.2.1a

APS perforation, low set value from cylinder 21 [.4.83] - Cylinder 28 [.8.87]
fd890

FD890 - 50p ochre, FCP/PVAD, narrow high set value, APS perforation, upright print (Cyls 4, 31, 34) (Harrison/photo) - Deegam 500.2.2

APS perforation, high set value from cylinder 4 [21.5.80] - cylinder 31 [12.87] - Cylinder 34 [2.89]
fd894

50p Sand shade - No phosphor bands - FCP

FD893 - 50p sand, FCP/PVAD, upright print (Cyl 35) (Harrison/photo) - Deegam 500.3.1 - S.G specialised U428 - Stoneham M291 - Concise X993

Sand shade, fluorescent coated paper from cylinder 35 [13.3.90]

FD894 - 50p olive sand, FCP/PVAD, upright print (Cyl 36) (Harrison/photo)

Olive sand shade, fluorescent coated paper from cylinder 36 [11.90] Off centre only available

FD894t - 50p olive sand, FCP/PVAD, one black vertical bar training stamp (Harrison/photo)

Olive sand shade, one black vertical bar training stamp from cylinder 36 [11.90]

50p Sand shade - No phosphor bands - ACP

AC179 - 50p sand, ACP/PVAD, upright print (Cyl 36) (Harrison/photo) - Deegam 500.5.1 - S.G specialised U430 - Stoneham M436 - Concise X991a

Advanced coated paper from cylinder 36 [21.1.92]