Great Britain Machins, by Adminware

Machin Pages:
Machin home page
Intro to this site
Why this site?
Navigating

Machins 101 PDF
Album pages

Main Lists:
Pre-decimal values
Decimal values
Anniversary

Regionals:
Northern Ireland
Scotland
Wales
Isle of Man

Other lists:
Perf changes
Elliptical perf
High value
Non-value indicators
Self-adhesive
Security
Service Inscribed

General:
Timeline
Varieties
Technical stuff
Terminology
Colour
Postal rates

Look-ups:
Head/Symbol types
Bklt Phosphor types
Imperf sides
Back prints

Other:
FAQ
Links

50p (15k) 50p slate grey
Self-Adhesive, Security features

(page updated: Jun 27/21)

1st seen: Jan 3/13
Photogravure

Security pattern lettering in background,
semi-circular slits

Also exists:

50p sand
50p ochre
50p light grey

  Paper Other identification Issue date Source Booklet singles Gum Security
slits
Security
code
 2-band phosphor
  OFNP De La Rue Jan 3/13 Sheets   Type 1 12
  OFNP De La Rue 2017? Sheets SBP*   Type 1 17
  OFNP Walsall 2019? Sheets SBP*   Type 2 19

* SBP = Security Backing Paper

5p ash pink 50p slate grey
Inverted Elliptical Perfs

Water activated gum, Security code

1st seen: Sep 19/13
Lithography

Security pattern lettering in background

  Paper Other identification Issue date Source Booklet singles Gum Security
slits
Security
code
 2-band phosphor
  OFNP Enschede Sep 19/13 Booklet DP460
(Merchant Navy prestige booklet)
PVA None 13 + P
50p 50p slate grey
Water activated gum, Security code

1st seen: Jun 18/15
Lithography

Security pattern lettering in background

  Paper Other identification Issue date Source Booklet singles Gum Security
slits
Security
code
 2-band phosphor
  OFNP Cartor

Jun 18/15

Booklet

DP488
(Waterloo Bicentenary prestige booklet)

PVA None 15 + P
  OFNP Cartor

Dec 4/18

Booklet

DP542
(Harry Potter prestige booklet)

PVA None 18 + P
  OFNP Cartor
(darker shade)

May 24/19

Booklet

DP555
(Queen Victoria Bicentennial prestige booklet)

PVA None 19 + P
  OFNP Cartor May 8/20 Booklet DP572
(V-E Day prestige booklet)

DP582
(Star Trek prestige booklet)

PVA None 20 + P
  OFNP Cartor May 28/21 Booklet DP590
(Paul McCartney prestige booklet)
PVA None 21 + P

Security slits:

1: no slits
2: cuts at top & bottom, wider than 2a
2a: cuts at top & bottom, narrower than 2
3: cut at bottom only

Security features:

Code: 12
Slits: Type 1
Code: 13 + P
Slits: None

 


Disclaimer: We apologize for any errors of information that might be present. Your feedback is appreciated.

For even more varieties on Machin stamps, check out The Complete Deegam Machin Handbook (simply the best Machin
 handbook available anywhere) by Douglas Myall - click for details.

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

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