Apparently a spinoff of Benguiat Serendipity, with flared bottom halves. Shown in two widths. Athird Wide style is listed as exclusive design [PLINC 1965] and is later shown as being available. [PLINC One Liner 1971]
Dante (Lettergraphics) is very similar. It was also offered by Solotype under the name Dante Baily.
Lucas Liccini made a private digitization in 2020 as part of his Revivals & Renditions student project at UdK Berlin, based on both Zenedipity and Dante.