Vintage Hull Pottery Bowl - High-Gloss Green Glaze - Ribbed Design - #F-15 - Made in USA. This is a beautiful piece of vintage Hull Pottery. The bowl features a striking high-gloss green glaze that is deep and lustrous. The exterior has distinctive vertical ribbing, adding texture and visual interest. The interior is smooth and also glazed in the same rich green. The bottom is clearly marked "Hull USA F-15." This bowl could be used for serving, display, or as part of a collection.