[shaun]

Good method Kevin, they are not accutaly hammer marks, the process uses a very large press with a row of finger like tools prushing down and supports below. the sheet of armour is slid into the press by hand and the skilled operator eyes up the high spots and then places it under the fingers, he then brings the tool down on that area, some times the plate will need to be turned a little to get a different area, hence the differt angles and spacing of the marks.