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
2009 GB - BS24 Business Sheet (1st Lge DLR) - Top Panel of 5 3

2009 GB - BS24 Business Sheet (1st Lge DLR) - Top Panel of 5

BS24 with MISSING 'M' Below Rear Diadem The first issue of the Business Sheet since the implementation of Security Overprint and "U" Slits The item for sale is the front panel containing 5 x large...
£13.49

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2009 GB - SGUJD15 1st Large Single from BS24 Bus Sht ROYBL MNH 9

2009 GB - SGUJD15 1st Large Single from BS24 Bus Sht ROYBL MNH

SGU2955 - Single from BS24 with MISSING 'M' Below Rear Diadem The first issue of the Business Sheet since the implementation of Security Overprint and "U" Slits The item for sale is the front panel...
£2.25

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2009 GB - SGU2980 (UJE6) 2nd Blue (D) CB MRIL Coil SA Single MNH 4

2009 GB - SGU2980 (UJE6) 2nd Blue (D) CB MRIL Coil SA Single MNH

SGU2980 (UJE6) Single (Unnumbered) Plain 2nd Class Bright Blue stamp from Vertical Self Adhesive Coil issued by DLR. Type 1A "U" cuts - No Date Code but does have Code "MRIL" in the Security...
£3.49

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2009 GB - MF5a - 12 x 1st Gold Security Bk Plain. 8mm RM No Impt 4

2009 GB - MF5a - 12 x 1st Gold Security Bk Plain. 8mm RM No Impt

MF5a Plain with 8mm White Margin at Right of booklet. Not discovered until early 2010. Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" . Printer's Imprint (Walsall) removed...
£17.49

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2009 GB - MF5ax - 12 x 1st Gold Security Bk Plain 5mm RM No Impt 1

2009 GB - MF5ax - 12 x 1st Gold Security Bk Plain 5mm RM No Impt

MF5a Plain with 5mm White Margin at Right of booklet. Not discovered until early 2010. Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" . Printer's Imprint (Walsall) removed...
£17.99

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2009 GB - Single 1st Gold (W) from MF5a Bk of 12 (MTIL) MNH 6

2009 GB - Single 1st Gold (W) from MF5a Bk of 12 (MTIL) MNH

MF5a Single Gold 1st stamp from Book of 12. Printer's Imprint Removed from back cover. Very short lived as the MA10 under-print version (MF5b) was introduced only two months later. Security: Type 2...
£1.99

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2009 GB - SGU3045-3046 1st Recorded x 2 Different MNH 3

2009 GB - SGU3045-3046 1st Recorded x 2 Different MNH

UJD16-UJD17. This sale is for 1 x 1st Flame Recorded Delivery and 1 x Flame Large Recorded Delivery from the Security Machin Series different versions of both the "U" slits and the hidden "ROYAL...
£6.65

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2009 GB - SGU3045-46 1st Recorded x 2 Different Marginal MNH 1

2009 GB - SGU3045-46 1st Recorded x 2 Different Marginal MNH

UJD16-UJD17. This sale is for 1 x 1st Flame Recorded Delivery and 1 x Flame Large Recorded Delivery (both Left or Right MARGINAL copies) from the Security Machin Series different versions of both the...
£6.99

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2010 GB - MB8a - 6 x 1st Gold "postcodes" MSIL/MA10 CYL W5 2

2010 GB - MB8a - 6 x 1st Gold "postcodes" MSIL/MA10 CYL W5

MB08a 5mm strip Cylinder W5 pW1. Has Walsall's Type 2 "U" security slits and iridescent underprint "MSIL" "postcodes" changed to lower case and FIRST Addition of date ( MA10 ) into under-print for a...
£9.75

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2010 GB - MB8a - 6 x 1st Gold "postcodes" MSIL/MA10 Plain Bklt 3

2010 GB - MB8a - 6 x 1st Gold "postcodes" MSIL/MA10 Plain Bklt

MB08a 5mm strip Plain. Has Walsall's Type 2 "U" security slits and iridescent underprint "MSIL" "postcodes" changed to lower case and FIRST Addition of date ( MA10 ) into under-print for a book of 6...
£8.75

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2010 GB - SGU2967 1st Gold (W) Single from MB8a Bk MSIL/MA10 MNH 2

2010 GB - SGU2967 1st Gold (W) Single from MB8a Bk MSIL/MA10 MNH

SGU2967 (UJW25) Single from MB8a This sale is for 1 x Walsall Gold 1st Booklet stamp from single book of 6 machins (with Welsh language and with small "p" in Postcodes) from the Security Machin...
£1.99

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2010 GB - ME5a - 12 x 2nd Blue Security Book MA10+MTIL Cyl W4pW2 1

2010 GB - ME5a - 12 x 2nd Blue Security Book MA10+MTIL Cyl W4pW2

LAST ONE - NOW VERY HARD TO FIND. ME5a WITH PRINTERS IMPRINT Cylinder W4pW2W1 on wider right margin. Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" . This was issued with...
£65.49

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2010 GB - ME5b(10) - 12 x 2nd Blue Security Book MA10+T Plain 4

2010 GB - ME5b(10) - 12 x 2nd Blue Security Book MA10+T Plain

ME5b Removal of Printers Imprint from rear of cover Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" This was issued with the date "MA10" added to the Security print. Stamp...
£12.49

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2010 GB - ME5b(10) - 12 x 2nd Blue Security Book MA10+T Cyl W4 3

2010 GB - ME5b(10) - 12 x 2nd Blue Security Book MA10+T Cyl W4

ME5b Cylinder W4pW2. Removal of Printers Imprint from rear of cover Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" This was issued with the date "MA10" added to the Security...
£12.99

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2010 GB - UJW32 Single 2nd Blue (W) from ME5b Bk MA10+MTIL MNH 4

2010 GB - UJW32 Single 2nd Blue (W) from ME5b Bk MA10+MTIL MNH

From ME5b Single Bright Blue 2nd class stamp from Book of 12 (No printers Imprint). Security: Type 2 Slits + MTIL + MA10. My Ref: N/A SG Spec: UJW32 Issued: 19 Aug 2010 Printer: Walsall MTIL...
£1.50

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2010 GB - PM21 - 4 x 1st Gold (W) + 2 x Olympics Bk 1 Plain 4

2010 GB - PM21 - 4 x 1st Gold (W) + 2 x Olympics Bk 1 Plain

PM21 Olympics Book I. Plain Booklet. This was a MIXED booklet issued with the Security under-print. Contains 4 x Gold 1st Machins, 1 x Judo and 1 x Archery. (The last booklet issued without a date...
£5.69

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2010 GB - Single 1st Gold (W) from PM21 Olympics 1 (MAIL) MNH 5

2010 GB - Single 1st Gold (W) from PM21 Olympics 1 (MAIL) MNH

PM21 Single Gold 1st stamp from Olympics Book I. (Judo + Archery) Security: Type 2 Slits + MCIL (No date Code). My Ref: 2010.1st.GW01 SG Spec: UJWB11 (SGU2949) Issued: 07 Jan 2010 Printer: Walsall ...
£1.11

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2010 GB - SGU3015[10] 1st Gold (D) Single from BS26 MBIL/10 MNH 7

2010 GB - SGU3015[10] 1st Gold (D) Single from BS26 MBIL/10 MNH

SGUJD13A [10] Scarce from BS26 single from the 1st Class De La Rue Business Sheet with Security Overprint Date Code of MA10 , "U" Slits and Souce Code of MBIL . The item for sale is single 1st Class...
£6.99

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2010 GB - MF5b-10 - 12 x 1st Gold (W) Stamp Book MTIL/10 Plain 4

2010 GB - MF5b-10 - 12 x 1st Gold (W) Stamp Book MTIL/10 Plain

MF5b Plain. Has Walsall's Type 2 "U" security slits and iridescent underprint "MTIL" . Printer's Imprint Removed from back cover. MA10 added to under-print. Stamp Detail Tag Description Issued:...
£24.49

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2010 GB - SGU3020[10] 1st Gold (W) frm MF5b Bk of 12 MTIL/10 MNH 4

2010 GB - SGU3020[10] 1st Gold (W) frm MF5b Bk of 12 MTIL/10 MNH

SU3020 [10] from MF5b Single Gold 1st stamp from Book of 12. Printer's Imprint Removed from back cover. Year date added to under-print. Security: Type 2 Slits + MTIL + MA10. My Ref: 2010.1st.GW03...
£2.89

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