Here's a nice example of button reflectors on a freeway exit sign. The Missouri 18 interchange with US 71 is a mile south of this point in Adrian.
Photo courtesy of David Backlin (taken June 2004)
Here's a nice example of button reflectors on a freeway exit sign. The Missouri 18 interchange with US 71 is a mile south of this point in Adrian.
Photo courtesy of David Backlin (taken June 2004)