Brett Martin Prostyle 106mm Cascade Cast Iron Effect Gutter - 4m (BR08 | Roofing Outlet
Gutter cast in limestone (Upper Ordovician; Cincinnatian a… | Flickr
File:Gutter cast (Waynesville Formation or Liberty Formation, Upper Ordovician; Caesar Creek Lake's emergency spillway, Warren County, Ohio, USA) 2 (44772970854).jpg - Wikimedia Commons