KY Jon,

At 75 USD an hour, the rate is higher than a top Italian engraver charges for his work. Note that engravers go to art school for a couple of years and then an engraving apprenticeship for a few more years.

It is hard to see how stock duplicating could be calculated at the same or higher cost. At the rate of 75 USD per hour, assuming full 8 hour days, a duplicator would gross over 140 thou per year.