January 13th 2009 seems as though it was a long time ago, in fact it was the date Royal Mail introduced the British Design Classics set.
Over the later months we had some special Customised Machin/Special issue booklets, (01) Double decker bus / phone box, (02), 2 x Mini car, (03), 2 x Concorde (04), Mini skirts designed by Mary Quant.
These customised booklets (Machins only) had a code letter C incorporated into the lettering of the background print. It you troll back through the archives on site from 2009 you will find reports on all these customised booklet issues.
The latest customised booklet to be announced from this 2009 set (Special design Classics) is number (05), The Spitfire, it is due to be released on 15th September 2010. Over a year later than it was initially announced. It is thought this was canceled and replaced by the Concorde booklet (3). The Spitfire booklet will be slotted in this year to correspond with and mark the 70th Anniversary of the Battle of Britain.
The booklet will be printed by Walsall Security Printers Ltd and the definitive stamps will continue to have MCIL and as with all booklets introduced in 2010 will also have MA10 background codes.