Is the border engraving on the Fox Sterlingworth hand done or stamped with some sort of machine? I am referring to the light zig zag engraving that is on all the Sterlingworths that I have seen. On one of the Sterlingworths I have the pattern seems to be slightly off from where it should be located which made me think it might have been done some how with a machine?

Thanks for the help,
Ron