 The Crosby Garrett Helmet is a copper alloy Roman cavalry helmet dating from the late 2nd or early 3rd century AD . It was found by an unnamed metal <unk> near Crosby Garrett in Cumbria , England , in May 2010 . Later investigations found that a Romano @-@ British farming settlement had occupied the site where the helmet was discovered , which was located a few miles away from a Roman road and a Roman army fort . It is possible that the owner of the helmet was a local inhabitant who had served with the Roman cavalry . 
