Family left stunned after stumbling across 'exceedingly rare' Stone Age hand axe
An expert has said it may be the oldest ever found in the area
Archaeology
Britain told to return one of history’s most important treasures as new museum opens in Egypt
The stone has been kept at the British Museum since 1802
Archaeologists baffled after 2,200-year-old treasure found in 'mint condition' below field
The pristine ancient find is the oldest ever to be discovered in the region
