Here are some designs that started life in 1957. The designer Charles Crowther developed a set of characters that would become mechanically operated features. The main photo is of the “The Hurdy Gurdy man” with his Barrel organ, taken from the 1960 Illuminations and here is the original artwork it was from.
Another one here initially called “Rolling Home” and later called “The Drunken Man”
the earlier concept drawing and the finished design. You can really appreciate how the artist plays around with an idea…..