Here are some of the myriad of possible designs for screw heads – almost all come from historical examples, although often with a bit of poetic licence! Most of these examples are test pieces engraved on the heads of ordinary old fashioned countersunk woodscrews ( bought from ebay) as its a quick way of getting something to engrave. Of course the slots are much wider than one would have in a gun screw, so they don’t look quite right
Sep 062016