English Victorian Mahogany Dining Table with Screw Expander, circa 1870

Antique English mahogany dining table with two leaves and Joseph Fitter screw expander mechanism, circa 1870. Table length is 60" without leaves or 108" with both; each leaf is 24". Generally excellent condition despite some evidence of wear. Unmarked except for the crank which bears the patent mark of Joseph Fitter.