Gold pocket watch with rack-lever escapement (Peter Litherland's patent of 1791) by Robert Roskell of Liverpool. The mechanism is signed, “R. Roskell Liverpool 6015” “Patent.” Cream dial with Roman numerals and gold hands. Gold case, eighteen carats, by Thomas Helsby of Chester, with Chester assay office marks for assay year 1809/10. Key wound (with key). Includes watch papers with MS of formulas (see accession file for more details)., Owned by Mathew Carey (1760-1839)., Gift of Mrs. Francis Carey Lea, Jr. in memory of Francis Carey Lea, Jr., 2011.
