| http://www.w3.org/ns/prov#value | - Similar examples are illustrated and discussed in Allix & Bonnert, 'Carriage clocks, Their History and Development', Antiques Collectors Club, 1981, plate IX/64 and Roberts, 'Carriage and other Travelling Clocks', Schiffer, 1993 Fig 20-11 a,b,c and 20-16 a,b,c,d.
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