3 F/VFNH booklet panes of 6 of the 1c green - bluish green from the 1942-1943 War Issue, variants of CBN-aaaaa paper.
The bluish green pane has an internal crease affecting 2 stamps. One paper is a deep cream color. It may be the result of poor storage, but it looks like it could be a legitimate paper type.
Unitrade values these at $19. The stamps offered here grade between 65 and 75 as follows:
