A WILLIAM IV LACQUERED BRASS 2.75 INCH REFRACTING TELESCOPE W. and T. Tulley, London, circa 1830 The 43 inch body tube with rack and pinion focus adjustment screw, 'star finder' sight, telescopic eyepiece assembly screwed into the tube end piece signed W. & T. Tulley, Islington, London to collar opposing lens cap to the objective end, mounted via a hinged compass joint onto a columnar upright with steady bar over folding tripod supports with pad feet, with original mahogany box with three eyepieces and an additional telescopic draw. The box 115cm (45.25ins) long, 23cm (9ins) deep, 14cm (5,5ins) high. Brothers William and Thomas Tulley succeeded their father, Charles Tulley, on the latter's death in 1830 and worked from Territ's Court, Islington, London. Charles Tulley was believed to have taken-on Benjamin Martin's workshop in 1782 after he was declared bankrupt and is thought to have completed the purchase of Martin's tools in 1784. The Tulley's specialised in making telescopes and microscopes with fine optics including the first microscopes with achromatic objectives and continued in business up until Thomas Tulleys death in 1846.
A WILLIAM IV LACQUERED BRASS 2.75 INCH REFRACTING TELESCOPE W. and T. Tulley, London, circa 1830 The 43 inch body tube with rack and pinion focus adjustment screw, 'star finder' sight, telescopic eyepiece assembly screwed into the tube end piece signed W. & T. Tulley, Islington, London to collar opposing lens cap to the objective end, mounted via a hinged compass joint onto a columnar upright with steady bar over folding tripod supports with pad feet, with original mahogany box with three eyepieces and an additional telescopic draw. The box 115cm (45.25ins) long, 23cm (9ins) deep, 14cm (5,5ins) high. Brothers William and Thomas Tulley succeeded their father, Charles Tulley, on the latter's death in 1830 and worked from Territ's Court, Islington, London. Charles Tulley was believed to have taken-on Benjamin Martin's workshop in 1782 after he was declared bankrupt and is thought to have completed the purchase of Martin's tools in 1784. The Tulley's specialised in making telescopes and microscopes with fine optics including the first microscopes with achromatic objectives and continued in business up until Thomas Tulleys death in 1846.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
