Listed is a two way valve from ASCO.  This item has a 5-digit catalog number, haven't been able to figure out how long ago ASCO switched from that format.  Has the distinctive red hat protective cap.  Rated for Air/Gases/Water, 125 pressure, 110/120, 50-60 Hertz, 1/4" pipe and has an 1/8" orifice.  Catalog #82615 & Serial #2133B.  If you need one, here it is.  Please check the pictures and contact me if you have any questions.