LS/681.113
Railway clocks.
2004
Derbyshire Record Office
LS/914.251DER
Guide to Derby, Matlock, Buxton, Ashbourne, Bakewell and locality
1930?
LS/920.WHI
John Whitehurst: innovator, scientist, geologist and clockmaker
2015
Periodical Series
Three centuries of clockmaking
April 2014
Bryan Donkin Company Ltd of Chesterfield, engineering firm