 Sandon has been involved in excavations at the Royal Worcester factory site and has authored or co-authored several books on the factory.On 24 July 2013 Sandon took part as auctioneer for Bonhams covering the sale of Copeland porcelain as part of the contents of Trelissick House in Feock near Truro, Cornwall were sold.Sandon is a regular expert on the BBC’s "Antiques Roadshow".