Designed for Oscar Seilor’s law, real estate, and insurance office, this is only office/commercial building in Jamestown designed by Hancock Brothers. The adaptation of Beaux-Arts classicism to this relatively small building demonstrates an interesting range of their design skills. The small prestigious building was constructed as a freestanding structure with no adjacent buildings on the east or west sides. The rectangular, one-story, brick structure with limestone trim rests upon a rusticated, rough-cut granite foundation. The arched entrance with flanking brick pilasters and limestone capitals in the raised first floor is the focal point of the facade. The arch contains a rough-cut keystone and radiating brickwork.