I got permission to hunt an old country school.Built 1904.It is surrounded by a hay field now.I gridded it out and hunted it with the 2500.I hunted for 6 hours.I never found anything other than deep rusty iron.I dug everything.I hunted the playground equipment,schoolyard by the front and back steps,nothing.This is the third old school I've hunted without finding any coins,buttons,toys or anything but deep rusty iron.These 3 schools were rather large for a country school.This has been a surprise each time.My neighbor went to a house next to mine that I've been hunting this afternoon.He started where I left off,went 3 feet and hit a Barber Half 1906 plain at 4 1/2 inches.