1947. Surveying Levels. At the back an instrument by Thomas Wright
1724. The Level in the middle was made by W. and S. Jones
c.1820 sent to Watts for repair in 1945. The level in the foreground is made by Watts - 1946 model.
1708 Thomas Wright had a workshop in London; it is probable that he took over the business of John Rowley (Instrument Maker), who became established as an instrument maker during the middle of the seventeenth century, but definite proof is lacking.
Wright was succeeded by Benjamin Cole and the Troughton brothers, which business became Troughton and Simms.
Sources of Information