British engineer (1736–1819) who developed an efficient steam engine which was a universal source of power and provided one of the most essential technological components of the early industrial revolution. The unit of power known as a ‘watt’ was named after him. ALS, one page both sides, 4.5 x 7.25, February 3, 1813. Letter to Thomas Britten. In his challenging handwriting, Watt writes regarding the estate of a man named Field; he explains that some family members are in England, others are in India, and that he will arrange to pay off the note. Light show-through from writing to opposing sides, and two areas of paper loss to the adjoining address panel page, otherwise fine condition. In making the Industrial Revolution possible, Watt’s developments altered the economies of continents and brought about tremendous social change. Watt autographic material is exceptionally desirable and rarely comes to market. Pre-certified John Reznikoff/PSA/DNA and RR Auction COA.
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