advertisement for Horrocks Iron Works, 234-236 North Broad Street, Philadelphia, Hahnemann Medical School, 1906, fire escapes,vault lights, elevator enclosures, daylighting
Philadelphia history in advertisements
advertisement for Horrocks Iron Works, 234-236 North Broad Street, Philadelphia, Hahnemann Medical School, 1906, fire escapes,vault lights, elevator enclosures, daylighting