20 October 2016 - 12 x 2nd class blue booklet with source code MTIL and year code M16L with text in new Chevin font
Cylinder numbers: W6 (blue), W1 (iridescent) W3 (phosphor) - the numbers are hidden by the front cover of the booklet.
In December 2016 a new printing was made on a revised version of the Security Backing Paper, known by us as SBP2.
Small number of Cylinder booklets available.
Printed by Walsall Security Printers. SG GB Concise catalogue - new number expected to be ME7a