Early 16th Queen's Own Lancers Officer's Coatee Tunic Button

In very poor condition, most probably excavated, but with shank intact. Circa 20.5mm in diameter. Hard to read but appears to be maker marked Jennens & Co, London. A gap filler until a better example comes along, if ever! This pattern worn circa 1830 to 1855. Scarce. Sold as seen.Comm DaSm