Flop close behind, hitting the frightened gnome...

This 45 piece plywood jigsaw puzzle has been cut in a rather crude semi-interlocking style. It features a painting signed by the author and illustrator Brian Gee and is thought to depict a scene from his book Flop Wakes Up.
Please let me know if you can help to date this puzzle.

Artist: Gee, Brian
Brand: Cathedral Toy Products
Material: Plywood
Nationality: British-England
Pieces: 45
Size: 6 1/4" x 8 3/4"
Theme: Fantasy
Title: Flop close behind, hitting the frightened gnome...