Issue Date: 01/01/1970
Issue Name: stamp issue name
Producer: Buckingham Covers
From February 2009 all 1st and 2nd class Machin Definitives and higher-priced 'make-up' values of 50p and £1 will be produced as self-adhesive Stamps with enhanced security features including semi-circular slits and an iridescent overprint.
As New Issue Stamps they will have a First Day of Issue. Otherwise they remain the same ‘Machin’ Stamp design.
These initiatives are part of the on-going development of security features for Stamps. The slits are designed to inhibit the removal of these Stamps for fraudulent sale and re-use. The overprint features the words ‘Royal Mail’ in a pattern reminiscent of security features on banknotes.
We have produced two covers for this issue, one features a set of four Machin Definitives (First and Second Class standard plus First and Second Class Large) with the new security features plus a Windsor postmark.
The second cover features the 50p and £1 Definitive stamps plus our Windsor postmark.