Those of you interested in old things, please see:
https://static.asminternational.org/amp/202310/22/NONINVASIVE µ-XRF ANALYSIS OF ANCIENT SILVER OBJECT
This case study details the noninvasive analysis of
an ancient silver object from Iran, now in the
collection of The Metropolitan Museum of Art.
Omid Oudbashi, University of Gothenburg, Sweden
Federico Carò and Jean-Francois de Lapérouse,
The Metropolitan Museum of Art, New York
Pages 18-21