This cabinet card was made by Atelier Make in Gnesen, Prussia, which is now Gniezno, Poland. The first thing that drew my eye was the large antler handle of the man’s walking stick. The second thing was his mustache. Going out on a limb, I’d say he looks Polish, rather than German. I haven’t seen many early portraits from Poland, but elaborate walking sticks aren’t common in German portraits from this period.
The cabinet card was in a box of family photos I acquired from Ohio. A few early ones were from Sweden, but I haven’t noticed any others from Poland or Prussia.