This is from “Fox in Socks” a children’s book by Dr. Seuss. The book was published in 1965. It has two characters: Fox: A Anthropomorphic Fox and Knox: A Anthropomorphic Dog
Then there are usual Socks and Box. Dr Seuss creates tongue Twisters with these 4 words and connectors like in, on etc.
Here are some examples…
Knox in Box
Fox in socks
Knox on Fox
In socks in box
Socks on Knox
And Knox in box
Fox in socks
On box on knox
I think you can visualise the scenes described!!
You can download an illustrated flip book from this link.