On Saturday afternoon October 9th 1920 members of the Leeds Astronomical Society of which Mr David Booth is president and others visited the works of Messrs Cooke and Sons Ltd Bishophill, York where an interesting and instructive time was spent.
During their tour around the works they saw how lens are ground down and polished and how various instruments are used and adjusted.
Among the other things pointed out were various parts of the 18 inch telescope for Brazil. In the show room there were various telescopes including one made by Mr Cooke in 1850.
The visitors were surprised to find that in York there were such large and extensive works equipped with the various modern and accurate machines capable of making the most precise scientific instruments for the exacting demands of today.