Modern copy of the very rare mezzotint portrait by S Bellin of the original oil portrait by Martin Archer-Shee painted circa 1808.
Of all the portraits of the 18th century pioneers of chronometry, this is perhaps the hardest to find, of which very few copies of the original mezzotint seem to have survived. When they do surface they attract prices of £2000 and upwards.
This photographic copy used to hang in the study of the late Alec Marsden. In modern Hogarth frame, 9 x 7 ins.