Slate grey

Fluor shades viewed under long wave light.
DP numbers are the copyright of the MBPC and are used with their permission.

OFNP = Optical free non phosphorised paper

PVA = Polyvinyl alcohol acetate gum

*RMS-G dull paper

PSA = Pressure sensitive adhesive

* You will need a copy of the Complete Deegam Machin Handbook to understand the Byfleet papers annotations.

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si5012

De La Rue self adhesive - Slate grey - Date 12

si5012_date_code

SI5012 - 50p slate grey self adhesive U cut security print, OFNP/PSA, two 4.5mm Novaglo blue fluor bands, date code M12L (Cylinder D1D1) (De La Rue/gravure) - Deegam 500.15.1 - Stoneham CSY50 - Concise U2925

Two Novaglo blue fluor bands, U cut security print, date code M12L from cylinder D1D1 [18.9.12]
es5013_stamp

Enschedé - Gummed stamps - Litho - Slate grey

royal_mail_code_mpil

Code MPIL - Date 13

es5013

ES5013 - 50p slate grey, OFNP/PVA, two 4.5mm Novaglo blue fluor bands, code MPIL, date 13 (DP460) (Enschedé/litho) - Deegam 500.16.1 - Stoneham EEGO50 - Concise U3017

Code MPIL, date 13 from Merchant Navy prestige pane DP460 [19.9.13]
cartor_50p

Cartor - Gummed stamps - Litho - Slate grey

Code MPIL - Date 15

cl50_15

CL5015 - 50p slate grey, OFNP/PVA, two 4.5mm Novaglo blue fluor bands, code MPIL, date 15 (DP488) (Cartor/litho) - Deegam 500.12.2 - Stoneham ECLO50

Code MPIL, date 15 from The Battle of Waterloo prestige pane DP88 [18.6.15]