Catenoid Corner Loudspeaker 1956 - 1960

This is an interesting speaker. I saw one once but had no idea what it was at the time or how much it might be worth. Wish I had bought it but oh well live and learn. There isn't alot of information available. Below are pictures articles and snippets I've found of the Catenoid.







The Audio League Report Vol.1 No.10 November 1955.