Lot Essay
COMPARATIVE LITERATURE:
Derek Roberts, Continental and American Skeleton Clocks, Schiffer, Pennsylvania, 1989, pp.102-103, figs.90-93.
F.B. Royer-Collard, Skeleton Clocks, NAG Press, London, 1969, p.69, fig.4-7.
Derek Roberts, Continental and American Skeleton Clocks, Schiffer, Pennsylvania, 1989, pp.102-103, figs.90-93.
F.B. Royer-Collard, Skeleton Clocks, NAG Press, London, 1969, p.69, fig.4-7.