Security

This is a new speciality range of Machins. In 2009 the Royal Mail decided to add Security features to their stamps. Originally this was only going to be high value, but then they added them to the various 1st and 2nd class issues as well recognising that these were the biggest volume sellers and more likely to be forged (it was also to stop re-selling of used but un-postmarked stamps on auction sites). In the the following period of time they have changed these security printings several times and in 2010 even added the date "10" into it.
This has already become a serious area of specialist collecting and because of the changes and other factors some are already difficult to get hold of.

UPDATE: For 2011 Royal Mail have replaced "MA10 with "M11L"

We have now published an album for Security Machins which can be found HERE.




Product Image Qty.- Item Name Price
2011 GB - RA2b - 4 x 2nd Large Blue Bk of 4 MA11 Plain 4

2011 GB - RA2b - 4 x 2nd Large Blue Bk of 4 MA11 Plain

RA2b Plain. Has Walsall's Type 2 "U" security slits and iridescent underprint "MFIL" . In addition this has the Date (MA11) added to the Security print. No Printers name on the reverse. Stamp Detail ...
£5.75

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2011 GB - RB2b - 4 x 1st Large Gold Sec Bk (MFIL-MA11) CYL 5mm 1

2011 GB - RB2b - 4 x 1st Large Gold Sec Bk (MFIL-MA11) CYL 5mm

RB2b Cylinder W2W1W1. First Class Book of 4 x 1st Class Gold NVI stamps with normal 5mm wide white strip. Printer's name removed from the rear of the booklet. Has Walsall's Type 2a "U" security slits...
£8.49

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2011 GB - RB2b - 4 x 1st Large Gold Sec Bk (MFIL-MA11) Plain 5mm 3

2011 GB - RB2b - 4 x 1st Large Gold Sec Bk (MFIL-MA11) Plain 5mm

RB2b Plain. First Class Book of 4 x 1st Class Gold NVI stamps with normal 5mm wide white strip. Printer's name removed from the rear of the booklet. Has Walsall's Type 2a "U" security slits and...
£7.49

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2011 GB - SGU3035 1st Lge Gold (W) from RB2b Bk of 4 (MFIL) MNH 2

2011 GB - SGU3035 1st Lge Gold (W) from RB2b Bk of 4 (MFIL) MNH

UJW24 Single Large Gold 1st NVI stamp from Book of 4 - RB2b [SB1(17)B]. Security code "MFIL" and addition of MA11 date. Security: Type 2a Slits + MFIL + MA11. My Ref: 2011.1st.GW04 SG Spec:...
£2.09

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2011 GB - RB2c - 4 x 1st Large Gold Bklt (MFIL-MA11) Plain FSC 1

2011 GB - RB2c - 4 x 1st Large Gold Bklt (MFIL-MA11) Plain FSC

RB2c [SB1(19)] Plain Booklet. with FSC Logo added to the rear of the booklet. Has Walsall's Type 2a "U" security slits and iridescent underprint "MFIL" . In addition this has the Date (MA11) added to...
£7.20

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2011 GB - PM27 - 4 x 1st Gold (W) + 2 x Thunderbirds Bk Plain 0

2011 GB - PM27 - 4 x 1st Gold (W) + 2 x Thunderbirds Bk Plain

PM27 The genius of Gerry Anderson. Plain Booklet. This was a MIXED booklet issued with the Security under-print. Contains 4 x Gold 1st Machins, 2 x Thunderbird 2. Security: Type 2 Slits + MCIL +...
£6.99

... more info
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2011 GB - SGU3016-11 1st Gold (W) frm PM27 Thunderbirds M11L MNH 3

2011 GB - SGU3016-11 1st Gold (W) frm PM27 Thunderbirds M11L MNH

SGU3016 Single Gold 1st stamp from Thunderbirds Book (PM27). Security: Type 2 Slits + MCIL + M11L. (first use of new marking) My Ref: 2011.1st.GW01 SG Spec: UJW34 Issued: 11 Jan 2011 Printer: Walsall...
£1.19

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2011 GB - SGU3016-11 1st Gold (W) frm PM28 Health M11L MNH 3

2011 GB - SGU3016-11 1st Gold (W) frm PM28 Health M11L MNH

SGU3016 Single Gold 1st stamp from Medical Health Book (PM28). Security: Type 2 Slits + MCIL + M11L. (first use of new marking) My Ref: 2011.1st.GW02 SG Spec: UJW34 Issued: 24 Feb 2011 Printer:...
£1.19

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2011 GB - PM29 - 4 x 1st Gold (W) + 2 x Thomas Tank Engine Bk 1

2011 GB - PM29 - 4 x 1st Gold (W) + 2 x Thomas Tank Engine Bk

PM29 Anniversary of Thomas The Tank Engine books. Plain Booklet. This was a MIXED booklet issued with the Security under-print. Contains 4 x Gold 1st Machins, 2 x Heart. Security: Type 2 Slits + MCIL...
£6.99

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2011 GB - SGU3016-11 1st Gold (W) frm PM29 Thomas Train M11L MNH 5

2011 GB - SGU3016-11 1st Gold (W) frm PM29 Thomas Train M11L MNH

UJW34 Single Gold 1st stamp from Thomas the Tank Engine Book (PM29). Date code change to M11L for 2011 issues. Security: Type 2a Slits + MCIL + M11L. SG Spec: UJW34 RM Code: UB327 Issued: 14 Jun...
£1.19

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2011 GB - PM30 - 4 x 1st Gold (W) + 2 x Olympics Bk 5 Plain 2

2011 GB - PM30 - 4 x 1st Gold (W) + 2 x Olympics Bk 5 Plain

PM30 Olympics Book V. Plain Booklet This was a MIXED booklet issued with the Security under-print. Contains 4 x Gold 1st Machins, 1 x Wheelchair Rugby and 1 x Paralympic Sailing. Security: Type 2...
£6.99

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2011 GB - PM31 - 4 x 1st Gold (W) + 2 x Classic Locomotives Bk 1

2011 GB - PM31 - 4 x 1st Gold (W) + 2 x Classic Locomotives Bk

PM31 Classic Locomotives of England. Plain Booklet. This was a MIXED booklet issued with the Security under-print. Contains 4 x Gold 1st Machins, 2 x BR Dean Goods Loco. Security: Type 2 Slits + MCIL...
£6.99

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2012 GB - Set 3 High Value Self Adhesive Machins (87p-£1.90) MNH 6

2012 GB - Set 3 High Value Self Adhesive Machins (87p-£1.90) MNH

SG var This sale is for a set of the three valued Security Self-Adhesive Machins with 2 Phosphor Bands, Iridescent Overprint and includes M12L year coding Sale consists of 87p Orange (SGU3012),...
£10.99

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2012 GB - SGU3060 (UG235) 68p Sea Green (W) 2B MPIL from DY3 MNH 0

2012 GB - SGU3060 (UG235) 68p Sea Green (W) 2B MPIL from DY3 MNH

UG235 2B on OFNP/PVA. Single uniquely from Water Activated Pane of Roald Dahl Prestige Book (DY3). Carries the iridescent Royal Mail overprint with the source code of MPIL and date code M11L...
£2.99

... more info
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2012 GB - SGU3013-12 2nd (W) T2a from ME5dn Bk M12L+T Single MNH 9

2012 GB - SGU3013-12 2nd (W) T2a from ME5dn Bk M12L+T Single MNH

UJW32 [12] from ME5dn Single Bright Blue 2nd class stamp from Book of 12. Security: Type 2a Slits + MTIL + M12L. IMPORTANT NOTE: This is from the booklet ME5dn with Type 2a "U" Cuts ( Narrow at top...
£1.40

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2012 GB - SGU2926-12 68p Sea Green (D) 2B M12L Sheet Single MNH 3

2012 GB - SGU2926-12 68p Sea Green (D) 2B M12L Sheet Single MNH

UJD25a 2B on NFCP/PSA . Very short lived Marginal Single from Self Adhesive Sheet. Carries the iridescent Royal Mail overprint with the date code M12L. My Ref: 2012.068.01 Deegam Ref: DG680.5.3...
£6.75

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2012 GB - SGU2926-12 68p Sea Green (D) 2B M12L Cyl D1/D1 (6) AU 2

2012 GB - SGU2926-12 68p Sea Green (D) 2B M12L Cyl D1/D1 (6) AU

UJD31(12) Withdrawn April 2012. 2B on NFCP/PSA . Angled Up Cylinder block of 6 stamps as image from Self Adhesive Counter Sheet. Carries the iridescent Royal Mail overprint with the date code M12L....
£44.99

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2012 GB - SGU2927-12 76p Brt Pink (D) M12L Box Single c1r2 MNH 1

2012 GB - SGU2927-12 76p Brt Pink (D) M12L Box Single c1r2 MNH

UJD34 [12] Bottom Left Corner Marginal Box Single. Dot Position Column 1 Row 2 (from Cylinder D1) . Notice the difference between the make up of the box single from Cyl 1 and that of Cyl 2. The Dot...
£7.69

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2012 GB - SGU2927-12 76p Brt Pink (D) M12L Cyl Single D1 AU MNH 1

2012 GB - SGU2927-12 76p Brt Pink (D) M12L Cyl Single D1 AU MNH

UJD34 [12] Cylinder - D1/D1 Single Angle Up (AU) from Self Adhesive Counter Sheet. 2B on NFCP/PSA . Very Short Lived/scarce as rates went up in April. Carries the iridescent Royal Mail overprint with...
£9.99

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2012 GB - BS34a Jubilee Bus Sheet (1st DLR) Top Panel of 4 MBND 1

2012 GB - BS34a Jubilee Bus Sheet (1st DLR) Top Panel of 4 MBND

BS34a Header Panel of 4 stamps (SGU3273) printed specifically for QEII Diamond Jubilee Year. Very short lifespan before printing contract was handed over to Walsall. Issued: 06 February 2012. Source...
£12.99

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