![1672AR03D.jpg](/media/5121/1672ar03d.jpg?width=750&height=500&mode=max&updated=08%2f03%2f2017+16%3a48%3a32)
Although the 3 1/2in (9cm) wide box was unsigned, auctioneer Andrew Scarborough reckoned the exceptional quality of the micromosaic indicated the workshop of a skilled Rome-based maker.
It was in good condition, other than an old repair to its interior lip, and European and UK-based bidders went into battle for the privately entered tour de force. It sold to one of the latter at £6200.
"In the last few months it has been the good-quality smalls and collectables, rather than the furniture, that have been carrying us through," said Mr Perry.
Overall, the 1034-lot sale realised £106,000.