20 October 2016 - 1st class deep scarlet Machin definitive from retail booklet of 6, source code MSIL.
The new booklet with a Padlock design on the cover was issued on 28 July 2016. A second version was issued on 20 October with a new (Chevin) font and with the stamps and parts of the cover printed in darker red and security backing paper, version 1.
This third version printed on SBP2 appeared in March 2017.
SG number U2968da ?
§ Please note we have changed the number from 2936S.6a to 2936aS.6 - the basic sheet stamp is a new colour and therefore has the suffix 'a' (2937 is already in use); this booklet stamp is 2936aS, with suffix .6 (2936aS.6)for M16L printing (and 2936aS.7 for M17L printing etc).
This SBP2 reprint is therefore 2936aS.6a.