The Missouri School for the Blind (MSB) is a school for the blind and visually impaired in St. Louis, Missouri, operated by the State of Missouri. It has served the state of Missouri from the Greater St. Louis area for more than 150 years as a governmental agency of the state of Missouri. In 1860, the Missouri School became the first educational institution in the nation to adopt the braille system. It also owned, developed and operated one of the nation's earliest braille printing presses.