I've been wondering about the relation between the age of a site and the age of the finds on average.
My question is in everyone's opinions and by past experience, how often do you find coins or dateable relics from the site you hunt? (Considering the site has been lightly hunted in the past or a virgin site)
Personally I've been surprised by the occasional find that dates much older than the site, but more often usually more modern even at the oldest sites.