The building itself is a little jewel – a miniature take on the Greek revival bank popularized by Strickland twenty years earlier in the Second Bank, just a block away. PSFS is pleasingly proportioned with two square columns positioned at the ends of the sidewalls (anta) and two freestanding ionic columns (said to be in antis). While not modeled on any specific Greek building, it resembles some of the “treasury” buildings at Delphi (particularly the Athenian treasury). The pediment was added by the new owner when the bank sold the building in 1881. To emphasize the building’s protection against fire, the first floor was supported with brick vaulting rather than timbers, and iron shutters were fitted on all the windows.