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To teach embroidery / sewing - UK, 1960's,
this kit, to make a cute box, with a flap-over lid
measuring approx. 7 inches across
consisted of:

Ready-made / cut-out shapes of
cardboard, with a set of pictures (themed EG. kittens),
were covered in thin clear (protective) plastic -
each piece has punched out holes.

Pieces are put side by side, and hand-stitched together
with embroidery thread...

To make the bottom of the box - a large picture is used
(smaller pieces are placed around this).
The lid consists of another large picture.

The end result is a shaped box EG. hexagonal,
with pictures inside and outside...

I'm really keen to acquire one of these, but can't
cos I don't know what they're called.
Please help if you can.
Thanks.