1989 Hazel Olsen Dolphin Art Pottery Wind Chime Signed. The bell is signed H. Olson © 89 and the large dolphin is signed H. Olson © USA. Wear is consistent with age. No chips or cracks. Measures approximately 57 inches long. The large dolphin measures approximately 14 1/2" long x 5 1/2" tall and the bell measures approximately 3 7/8" diameter x 4 1/2" tall.