I found these photos of my great grandfather, Boleslaw. He was born in 1884 (In "Trotzko, Russia" although I could not find this on the map of the time period) and immigrated to the USA in 1911. He is shown in two different uniforms here, and I was wondering if you could provide any information at all identifying them. Thank you so much for the help.
I was told he was in the Prussian army, but after looking at the uniform and comparing to other photos - it appears to me to be Russian.