An odd, multi-layered feature along the lunar terminator northeast of Mare Crisium near the crater Zeno, photographed just after midnight on October 3, 2020, in excellent seeing. The view is reversed left to right. A few craters and mare features are identified as locators. Cropped from a larger image taken with my Samsung cell phone, handheld, though my Sky-Watcher ED80 Apo Refractor fitted with a 10 mm eyepiece and 2x barlow. Has any reader seen this feature before?