A late 17th / early 18th century West Country silver fancy-back Trefid spoon

A late 17th / early 18th century West Country silver fancy-back Trefid spoon, marked three times to base of stem E.S, for Edward Sweet, Dunster, circa 1704, the oval bowl with a plain rat-tail and scroll decoration, the terminal with scroll decoration, the reverse prick dot initialled and dated 'I.S' over 'P' over '1704', length 19.5cm, approx. weight 1.2oz.