Glacial scratches and grooves in Rove rocks indicate a north or somewhat east-of-north glacial movement.
2.
They say the so-called inscriptions are run-of-the-mill field stones with plow marks, or a few more glacial scratches than usual.
3.
Although one of the features, having the appearance of a sword handle, is definitely a carving of some sort, modern historical studies have identified the rest of the marks as naturally occurring glacial scratches.