This is a 9 Inch (22 cm) mahogany Spirit Level with tapered ends. It is a well-made mahogany plumb and level with brass top plate and ends. Made by Preston. Edward Preston started his company in 1825 in Birmingham, manufacturing, and mainly wooden planes. In 1850, he was joined by his son Edward Jr. The second son, Henry joined soon after. By 1880, The company had been renamed Edward Preston and Sons and was located on Whitehall St. in Birmingham. The company ceased trading in 1932.