Four circa 1880s 4.25" x 6.5" cabinet card photos which are credited to Pach Brothers of Cambridge, Massachusetts. Each of the men are identified in pen, and include:
Francis Brown - Professor of Philosophy
(William Watson) Goodwin - Professor of Greek
Charles Franklin Dunbar - Professor of Political Economy
James Bradstreet Greenaugh - Professor of Latin
There is some surface wear and foxing (more to one than the others) and some light edge wear.