I have a postcard with my great grandfather seated between two men. From what I know, this picture was taken in Serpukhov, Moscow Military district. What I can't determine is his rank and in what capacity. Someone once mentioned an NCO in the 5th Howitzer Arillery division. I've attached a couple of pictures (and can provide higher quality versions of any detail). I'm hoping someone can confirm the information and perhaps provide some additional detail. I'd like to learn more. I believe the picture was taken between 1900 and 1905. Your help is appreciated. Thanks!