Kunzle cakes were small chocolate shells in the shape of a showboat filed with sponge cake and topped with butter cream and piped with an icing decoration and individually wrapped in cellophane.They were absolutely gorgeous and sickly to a small child like me in the forties.They were made by the Kunzle factory in Birmingham and bought out by J.Lyons eventually.They stopped making them in the seventies and there is a lot of people on web sites trying to get them made again by another bakery.Just google Kunzle cakes and you will see.The J lyons site will give you pictures if you go to kunzle cakes.
As you can see I am one of the people wanting to bring them back but I doubt they will taste the same.