References
How to cite
Matthew Imms, ‘Defences in Portsmouth Harbour, with the Square Tower Semaphore Station and Portsmouth Cathedral ?1824 by Joseph Mallord William Turner’, catalogue entry, December 2014, in David Blayney Brown (ed.), J.M.W. Turner: Sketchbooks, Drawings and Watercolours, Tate Research Publication, April 2015, https://www
