British Museum officials began investigating the theft of its artefacts after items were offered for sale on eBay. The London museum has said a member of staff was sacked after jewellery and gems from its collection were found to be "missing, stolen or damaged". The museum said the items included "gold jewellery and gems of semi-precious stones and glass dating from the 15th Century BC to the 19th Century AD". The majority were "small pieces kept in a storeroom belonging to one of the museum's collections". They were mainly used for academic and research work and none had recently been...