As predicted the 10 March Design Classics retail booklet (with the Phone box and Routemaster bus stamps) has 4 Machin 1st class gold with security features.
The booklet, shown above, is printed by Walsall Security Print. The printing is different, as you can see from the head - see below (sheet on left, booklet on right).
But comparison with the original sheet stamps also shows that the security slits are quite different - in the booklet there are four, rather than two. The Walsall slits are divided in two at the top and bottom.
These scans show coloured screening within the upright of the figure 1 - this is the security overlay.
955. Malta George Cross, Guernsey Cruise Ships And Namibia Rabbits. - 🇲🇹 *Malta Post *issued one of its greeting stamps depicting a map of Malta with an attached label which commemorated the 75th anniversary of the awar...