Close-up showing legitimate moveable louvers and operating tilt rod. Some shutter manufacturers offer only so-called faux tilt rods. While having the appearance of an operating tilt rod, these are often unacceptable to historic district commissions as not preserving the functionality of operable louvers contrary to the guidelines for materials substitution promulgated by the Secretary of the Interior's Guidelines for Preserving Historic Properties published by the National Park Service. This detail from two an historic whaling captain's home in the historic whaling port of Edgartown on Martha's Vineyard. Also note the beading detail on the stile (vertical member) of the shutter. A full picture of this same house may be found on the Information Request page of this website.