28 July 2016 = New design 6 x 1st class red retail booklet - single stamp
Royal Mail have introduced a new branding with this booklet including the slogan
THE FUTURE, IN SAFE HANDS
alongside a new design featuring a padlock - indicating security of the mail.
Expected to be printed by Walsall Security Printers, source code MSIL, year code M16L.
The SG catalogue number should be U2968d (also used for earlier years).