A Roman mask offered by TimeLine Auctions, estimated at £80,000-100,000.

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Dating from the late 2nd or early 3rd century AD, it bears similarities to the famed Crosby Garrett parade helmet which sold at Christie’s for £1.9m in 2010.

A report by the conservation specialist who restored the mask concludes that it is probably made by the same craftsman, or at least from the same workshop.

The mask is among a range of antiquities coming up for auction over the next two months and leads our review of the market in this issue.