Dark blue text on off-white background with dark blue band along the edges of button. A small compass is centered on the button.
The Northfield Iron Company was founded in 1907 in Northfield, Minnesota. They manufactured road-related materials, including highway signs and snow control fences. In 1920, they obtained a patent for a collapsible arch form for use in construction. "NICO" is the abbreviation for the Northfield Iron Company and also the name of the street on which the manufacturing plants were located.