As I have often mentioned before, the ephemera is the biggest challenge in trying to complete a collection. I am always delighted to find a catalogue. This one used to be quite common. I am always happy to be offered any similar items.
Below is a variant of the 1956 catalogue, with a link to my original listing. Same item but a different colour banner, orange instead of purple.
New into the Collection: More Curious Books and Amusements (catalogue) Summer and Autumn 1956
See Also
New into The Collection: Olympia Press 1959 (Catalogue)
New into the Collection: Olympia Books 1957 (Catalogue)
New into the Collection: A List of Ophelia Press Titles and Others 1959 (Catalogue)