3 January 2013 - £1 wood brown Machin definitive from counter sheets, year code M12L, source code MAIL
The £1 counter sheet stamp was reprinted on 09/02/18 by ISP Walsall for the first time, and was distributed by Royal Mail Tallents House on 23/05/18.
The phosphor glows yellow under an ultra-violet lamp.
- Single stamps (or multiples)
- Cylinder block of 6
- Date block of 8 09/02/18
SG number 2934, previously 2932 (also used for earlier years' printings)