Fluorite mine started ca. 1890's and closed about 1919. Worked intermittently since for specimens until present. Formerly owned by the American Tube and Stamping Co., Bridgeport, CT (1918-1919). Mineralized area is termed the William Wise vein.
References:
Rocks & Minerals (1990) 65:329-335.
Robinson, G. et. al. (1995): World review of mineral discoveries: 1993-1994 (Mineralogical Record 26:475-499)