If you don't know what is ZF41 - here is some info from wiki. Starting from 1941 the short 1.5x Zielfernrohr 41 (Zf41) telescopic sight.
Was fitted to some Karabiner 98k. The Zf-41 was in fact the first attempt to provide the ordinary infantryman with a rifle capable of being used, if not for pure sniping. Then at least for sharpshooting. Most modern-day armies have adopted some form of optical aiming device on infantry weapons such as the ACOG.It was initially planned to equip most combat units with the Zf-41 scopes, but only 6% of German weapons production could fit the sight. Though useful for sharpshooting with normal infantry units, the design was generally rejected by sniper schools and disliked by snipers. Because the 1.5x magnifying scope was deemed insufficient for shooting effectively over long distances. Problems were the scope's extreme eye relief, poor functioning in bad light and low magnifying power.
Nonetheless, lack of better scopes meant the Zf-41 was used by snipers at the early stages of the war against the Soviet Union. But many snipers preferred captured Soviet rifles and custom-equipped German rifles with civilian scopes such as the vintage Gewehr 98. Item location - Latvia (EU). The item "WW2 ORIGINAL GERMAN K98 SNIPER ZF41 SCOPE SHARPSHOOTER WITH BOX WH" is in sale since Monday, November 12, 2018.
This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Germany\Personal, Field Gear".original" and is located in Liepaja. This item can be shipped worldwide.