I was reading a story last night called Copies of Early American tokens. There was a man named Thomas Wyatt who wanted a copy of the NE silver shilling but he didn't have a real one to copy. So he gave the die engraver a 1839 copy of An Historical Account of the Massachetts Currency by Joseph B. Felt. Felt's book had horizontal lines for shading in the drawing for the NE Shilling. Apparently the engraver didn't understand that and reproduced every shade line in the drawing on the dies. Heheheh. Well, I hope he had some kind of broaching-like tool or something to speed things up. I'd hate to think he sat up all night, cursing and cutting little grooves into a die face one at a time.