An early example of a man portable telescopic sight for low visibility/night use is the "Zielgerät" (aiming device) 1229 (ZG 1229), also known by its code name Vampir. The ZG 1229 Vampir was a Generation 0 active infrared night vision device developed for the "Wehrmacht" for the StG 44 assault rifle, intended primarily for night use. The issuing of the ZG 1229 Vampir system to the military started in 1944 and it was used on a small scale in combat from February 1945 until the final stages of World War II.