2 4 "have the necessary quality of con¬ fidence about it, namely, it must be something which is not public property and public knowledge." (per LORD GREENE M.R. in the Saltman Engineering case at p. 215). The design of the Butt-Cat hull was in the public domain: there was nothing confidential about it.. In my view, therefore, the decision of the Court a quo cannot be sustained insofar as it is based on the misuse of confidential information. That, however, was not the only basis of MULLINS J's decision. He said at 579 D-F: "Admittedly in the Dun and Bradstreet case the information was distributed by the plaintiff to its clients on a confidential