Temporary observatory for pendulum observations, Sumatra Size:Large: 7 x 5in 8th September 1964

8th September 1964

Prince's Square

King William III entering London

People come and go along the cobbled street

Temporary observatory for pendulum observations, Sumatra Size:Large: 7 x 5in 8th September 1964Plan of a tent observatory used for pendulum observations, indicating the location of main instruments (clock, pendulum, telescope and transit instrument) and the masonry pillar for mounting the pendulum clock. Inscribed: 'Plan of the Observatory' Figure no. 3 from Report of the length of the pendulum at the equator made on an expedition from the observatory at Madras, by John Goldingham (Madras, 1824). Scale 1 inch: 2 feet. Original painting pasted