Saturday 4 February 2023

Thomas Cooke telescope for steel merchants in Sheffield

 The steel manufacturer and merchant Charles Daniel Doncaster from Broomhall Park, Sheffield purchased from Thomas Cooke & Sons in 1858 a 3.25 inch telescope on a tall tripod, with steadying rods, finder, three astronomical eyepieces and one terrestrial pancratic eyepiece, plus vertical and horizontal slow motions, in a box.




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