Leg shackles like these are on display at Alcatraz, San Francisco's former island penitentiary.
Treasure: Shackles at Alcatraz
Used to control prisoners being transported to and from Alcatraz Island, locking leg shackles are among many items displayed or shown in photos at the former penitentiary, now a popular national park. Ferries from San Francisco run daily except on winter holidays. nps.gov/alca.
Photography courtesy of National Park Service
This article was first published in January 2013. Some facts may have aged gracelessly. Please call ahead to verify information.
