2003.07.01  Great Britain High-Value Machins and 1st-Class Gold Machin Reprints
The 1.50L, 2.00L, 3.00L, 5.00L high-value Machin definitives have been reprinted using the (photo-)gravure process instead of intaglio/recess. Iridion ink will be used. All stamps will have two phosphor bands, and be printed in sheets of 200.

The 1st class gold definitive in ordinary gummed sheets will be reissued on the same date, printed by De La Rue. This is likely to be noticeably different to the similar stamp issued in 1997 which was printed by Walsall Security Print.

   

Original information from Norvic Philatelics