A late 17th century/early 18th century portrait miniature of a bearded gentleman in red jacket

A late 17th century/early 18th century portrait miniature of a bearded gentleman in red jacket with ermine collar and fur hat, in yellow metal case with baronial coronet and monogram, 6.5cm x 5cm overall Condition Report: Glass very grubby, possible fading centre bottom, possible wear/paint loss top right, slight nick in frame