31 March 2009 Security Definitive stamps with U-shaped cuts and iridescent text.
6 x 1st class gold booklet - first issue with no year code and source code MSIL
Printed by Walsall Security Printers, with imprint on reverse, cylinder W5 gold / W1 phosphor / W1 iridescent
Inside front cover has postcode advert with web address:
www.royalmail.com/Postcodes4free (upper case 'P')
SG catalogue number MB8 - Cylinder book only