3 January 2013 - £1 wood brown Machin definitive from counter sheets, year code M12L, source code MAIL
The 20p counter sheet was reprinted on 09/02/18 by ISP Walsall, and was distributed by Royal Mail Tallents House on 23/05/18. Phosphor glows yellow under an ultra-violet lamp. By the time that was distributed, a second printing had already taken place.
The second Walsall reprint was 09/05/18: this has blue phosphor with yellow fluorescence to the transparent iridescent security ink.
- Single stamps (or multiples)
- Cylinder block of 6
- Date block of 8 09/05/18
SG number 2934, previously 2932 (also used for earlier years' printings)