20 March 2018 - Centenary of the Royal Air Force
The Centenary of the Founding of the Royal Air Force was marked by a set of 6 stamps, a miniature sheet, a retail booklet and a prestige stamp book.
The Machin definitive pane from the PSB contains 2x 2p, 3x 5p, and 2x £1.17 stamps.
This is a set of 3 Machin definitives coded M18L MPIL. The iridescent printing is difficult to see especially on the £1.17, and especially the 'P' of MPIL.
The 5p, as often before, reacts under ultra-violet light and shows quite orange.
SG numbers not yet allocated, and all will be changed in the 208 Concise catalogue.
Norvic numbers: 4002P.8, 4005P.8, and 4117P.8