A late 17th / early 18th century Continental...

A late 17th / early 18th century Continental silver-gilt beaker,
maker's mark I*?, also marked with an eagle with spread wings, circa 1700,
tapering circular form, embossed with three medallions of male heads within foliate scroll decoration, on a matted background, on a tall raised foliate circular foot, height 11.8cm, approx. weight 3.6oz.