Thank you for pointing out that it was silver. But the gold and silver had more equal value at the time so direct comparison is not fair. In Roman times the si

Thank you for pointing out that it was silver. But the gold and silver had more equal value at the time so direct comparison is not fair. In Roman times the silver was valued around 10 times less than gold but today it is around 100 times less valued. From this perspective the better approach might be indeed through labor as GP proposed but again how labor has been valued over time has not been uniform and might not compare to today.