Antique Northwood Blue Opalescent Glass Shell and Wild Rose 3 Feet Bowl Dish 1906 Excellent condition! No chips or scratches. The bottom has some rough spots, which are part of the manufacturing process at the time. See photos for details. Measures aprox 3" tall 5 1/2" diameter The Northwood Glass Company was a manufacturer of art glass from 1887 to 1925. The founder was from England and brought his father's glass making techniques with him to the United States.