Sterling Silver Great Horned Owl from the Franklin Mint By Gilroy Roberts Circa 1978. This absolutely stunning Great Horned Owl from the Franklin Mint was designed by Gilroy Roberts c. 1978! The Wooden base is oval shaped, measuring 5 inches by 4 inches and 1 1/2 inches tall. The height is measured from the highest wing: 13 inches including base. The wing span is 10 1/4 inches & the body of owl from the end of the tail feathers to the head is approximately 6 1/4 inches. The Owl without the base weighs 3,782 total grams (121 ounces).