Sommerville, Maxwell. Engraved Gems: Their History and an Elaborate View of Their Place In Art. Maxwell Sommerville, 1889.
Reference
- Object[16]
- no[16]
- mediterranean[16]
- mediterranean[16]
- graeco-roman[2]
- agate[4]
- carnelian[1]
- chalcedony[3]
- jasper[1]
- metal[1]
- onyx[7]
- sardonyx[5]
- siberian jasper[1]
- cameo[16]
- actual citation[16]















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