Bird's Custard Advertising Puzzle made by Chad Valley

A vintage advertising give-away puzzle for "Bird's" (a custard brand).
Made for "Bird's" by the toy manufacture Chad Valley, Harborne, England.
The puzzle is nine card piece to be arranged in a square as per instructions on the inside of the lid.
In the original box with the solution leaflet.
In good condition with minor signs of age.
Box measures approx. 3 1/2 inches square.