I always like to look up photographers’ names when they feature so prominently on cabinet card

I always like to look up photographers’ names when they feature so prominently on cabinet cards. Mr Henry B. Herrington began his career in 1893 Minneapolis, worked from his address in Dexter, Minnesota from 1902 to 1904, then moved to nearby Hayfield and leased a gallery thereafter.
What these two chaps are looking at in their folded magazine must however remain a mystery - working together to complete a tricky crossword, perhaps?