6 x 1st class red booklet
Originally issued 3 January 2013 with year code M12L, this is the 2015 reprint
Printed by Walsall Security Printers, source code MSIL, year code M15L, first appeared in June 2015.
Inside front cover has postcode advert, rear cover has telephone number 03457 740 740
The cylinder numbers - W7 (red) W1 (iridescent) W3 (phosphor) - are hidden by the front cover (see picture)
SG catalogue number MB12 (also used for other years)