[Sir William Herschel exhibiting his great telescope to George III at Slough 1782] [art original].Richards, John Inigo, 1731-1810, artist[approximately 1782]engKing George III is standing with a woman holding a parasol (possibly Herschel's sister and assistant Caroline) observing two men operating a massive 40 ft. reflecting telescope suspended in a complex framework of wooden supports, cables, pulleys, and wheelsTitle, date, and artist supplied by cataloger.