16 October 2018 Harry Potter Reatail booklet
Issued as part of the Harry Potter issue, this booklet contains two self-adhesive Harry Potter stamps from the set and 4 x 1st class Machins. The Machins are coded M18L MCIL. The phosphor bands react with a blue glow and on the Machins the transparent security ink fluoresces yellow.
In order to use up the remains of the original security printed backing paper (SBP1) part of the printing of this booklet was produced on inverted SBP1, the remainder was on SBP2. We have both available in limited numbers, with some cylinder books.
SG booklet number expected to be PM64/a - both booklets should be listed.