Items of jewelry found beneath the coins were probably made around 300 A. D. The coins were found in a dense cluster that could not have been formed by coins slipping through an accumulation of larger objects. The coins had far more value than the kitchen implements did. The coins used in the Roman Empire often remained in circulation for many decades.
A small collection of copper-alloy kitchen implements was found in an abandoned Roman-era well. Beneath them was a cache of coins, some of which dated to 375 A. D. The implements, ttherefore, were dropped into the well no earlier than 375 A. D.
Which one of the following, if true, most strengthens the argument?