Important Collectors Wristwatches, P...
Geneva, Hotel Des Bergues, Oct 20, 1991
Litherland, Whiteside & Co., Liverpool, No. 6546.
Rare full plate movement with fusee, unusual rack lever escapement with pirouette, balance spring being on a secondary wheel, allowing the gold plain balance to revolve several times in both direction in order to beat seconds, circa 1820. White enamel dial, gold "spade" hands. O.T.L. No. 43, illustration No. 11. Robert Roskell, Liverpool, No. 24662. Full plate movement with fusee, rack lever escapement, circa 1810. Fine gold dial with applied decoration, blued-steel "spade" hands. O.T.L. No.42.