Byington Mill (Frisbie & Stansfield Knitting Company), also known as the J. A. Firsching & Son Building, is a historic knitting mill located at Utica in Oneida County, New York. It was designed by Utica architect Frederick H. Gouge and was built in 1910 as a four story structure; a fifth floor was added before 1929. It consists of a rectangular main block built of brick load bearing walls, a heavy timber frame, and a flat roof. A two story office wing and one story shop section was originally attached to the building. However, this addition was demolished in 2007 when the city erroneously issued a permit to do so. It was listed on the National Register of Historic Places in 1993.