R.W. Symonds, A Book of English Clocks, Harmondsworth, 1947.
N. Goodison, English Barometers and Their Makers 1680-1860, Woodbridge, 1977.
T. Robinson, The Longcase Clock, Woodbridge, 1981.
P.G. Dawson, The Iden Clock Collection, Woodbridge, 1987.
Richard Peckover is recorded in Change Alley in 1735 and Royal Exchange in 1751. He took over Quare and Horseman's business in 1733.
Clocks incorporating barometers are rare. Robinson (p.270) shows an example by Christopher Pinchbeck and Dawson (pp.260-261), Goodison (pp.144-146) and Symonds (p.68) show others by John Ellicott, who is perhaps the most famous maker to have designed such clocks, one of which may be seen in the Victoria and Albert Museum, London. An astronomical longcase clock with barometer in the door by Alexander Cumming was sold Christie's London, 19 June 2000, lot 91. On the present clock it is interesting to note the flattened arch of the trunk door which frames the barometer dial, a relatively uncommon design which may also be seen on the best London cases by makers such as Ellicott, Mudge and Dutton.