In fertile Glanshammar we've discovered something I like to call the Dirham Background Radiation. It refers to the fact that if you send 35 metal detectorists into a large South Scandinavian field and have them do about 7 person hours per 2500 sqm, you always find an Islamic silver coin of the later 1st millennium AD. Even if you find nothing else. 1/2

#archaeology #metaldetecting