I have been stuck on this uniform for years.I have looked through military uniform books and online, but haven't seen another uniform like this. The man seated was my great-great grandfather. This photo was taken around 1904-1905. For starters, this uniform doesn't have the zig-zag trim on the collar that I have seen in so many photos of Polish military men. Is it even a Polish uniform? He was from the Russian occupied area of Poland. I also find it interesting that he is holding the jacket closed as though it doesn't fit. If that's the case, that tells me that he was no longer in the military when the photo was taken. In looking at everyone in the photo, it looks to me as though they had means.
Any help is appreciated. I hate assuming everything.