1920's Vintage Brass Schooner Porthole -- 8" glass

Porthole salvaged years ago from a 1920's schooner in "as found" condition. 8 inch glass window and the porthole has a tapering straight edge on two side of the backing plate. Single dog swivel bolt with acorn nut. 4 inch deep collar and the backing plate measures 12 inches X 10 1/2 inches. Retains an aged verdigris brass patina. Some surface scratches on the glass. One wing nut is missing in part but still functional. Each porthole weighs just a little over 15 pounds. Priced per porthole.