Cabinet card of an unidentified man

An albumen cabinet photograph of an unidentified man. Seated against a solid studio backdrop, a man with dark moustache and goatee wears a patterned dark necktie, white shirt, and dark jacket. He looks to his proper left. At the bottom of the cabinet card, stamped in dark ink, is: [Zimmerman / and / Whitstruck / St. Paul,Minn.]. There are various inscriptions on the reverse of the cabinet card.