Four Treasures Reference Database
Record No. 2106
Inspiring hours as an invigilator
Journal Article
Gübelin, E.J. (1974) Inspiring hours as an invigilator. Journal of Gemmology, Vol. 14, No. 4, October, pp. 149–155.
ISBN/ISSN: 221252 | RWHL
Hide Keywords
Copy Reference
inclusions, gems