Manufactured by "Winter Instruments" (Jungingen, Germany) 13.03.1964. This Variometer (Vertical Speed Indicator) came from a Schleicher K-8 Glider in Austria. Model: STV-5 Manufacture Number: 32652 (German: Werk-No:) Seen listed in "WingsandWheels" for US$360 and in Germany €350. A rare and nice piece for anyone restoring vintage planes/gliders from the 1960-70's. The instrument was in working order when taken from the plane in the 1990's. It has not been tested or overhauled.