Great Britain 1985 The Story of the Times booklet pane variety, SG X864IEy.
A very fine unmounted mint, with full original gum, booklet pane of nine with phosphor omitted.
Ex: prestige booklet DX6. A very rare printing variety.
GB Specialised Catalogue No: UEP23a.
Phosphor coatings have been applied to GB stamps since 1959. This printing variety has the phosphor missing.
