Windage adjustment drum located to the rifle's non-bolt side of the sight has 10 graduations in either direction beginning with zero; plus markings are for corrections to the right and minus markings are for corrections to the left. Nice markings as pictured: Outside of'box' - A. And 1931r (preceded by Russian lettering); Inside of'box' - Sickle Hammer Star NB2086 1936r. Rifle pictured is not included and is for illustration only. Rare, especially in this condition, hard to come by historical 83 year old WW2 Russian Sniper Scope!The item "WW2 Russian Soviet M91/30 Mosin-Nagant Rifle Original 1936 PE Sniper Scope NICE" is in sale since Tuesday, April 7, 2020. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Russia\Other Russian WWII Orig. The seller is "jaubreyeb" and is located in Metairie, Louisiana. This item can be shipped to United States.