Product - see also detailed description
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.
SG number U2968da