Photo - Unknown Man in Canton, Missouri

Here is an old photo taken in about 1895-1907 in Canton, Mo. The names of the photo studios are shown. The picture was mailed from St. Louis by B. G. Proetz in the early 1950’s.  I am guessing the photo was taken 1870 or so? Surnames could be Proetz, Tate, Bonnell. I will appreciate any help identifying this individual. Thanks, Cynthia Sizeler