Fig. 8From: Identification of an unusual pale green material on the surface of an ancient Chinese bronze vessel and application of laser cleaning to its removala Insert with flat-head. Area before (b) and after cleaning with flat-head insert (c), scale bar: 2.0Â mm. d Pin insert. Area before (e) and after cleaning with pin insert showing excessive cleaning (f), scale bar:1.0Â mmBack to article page