Rollin a Paris, French, for the English market, time and alarm, mini 8 days, skeleton clock, sold at the Great Exhibition of 1851

Rollin a Paris, French, for the English market, time and alarm, mini 8 days, skeleton clock, sold at the Great Exhibition of 1851 this example is signed on the dial and movement, but has no glass dome. Both the pull-wind alarm mechanism and the alarm set mechanism appear to be operating. Detailed information on this model can be found in Royer-Collard's book titled "Skeleton Clocks" and in Roberts' book titled "Continental and American Skeleton Clocks". Ht 8.5"