1st class business sheet M15L MBIL
This is the 1st class Royal Mail Red from the business sheet of 100, reprinted with M15L code on 09/03/15
Year code - M15L
Source code - MBIL
SG U2968a - also used for other years
We have no sheet top panels available.
(The business sheet with Secutiy printed Backing Paper was found in March 2016 with year code M15L, printed on 13/01/16)