Yesterday, I "grew a pair" and stopped at a busy intersection at a large university hayfield I always wished I could try. It is on the main colonial road from the Rhode Island colonies, headed to the Connecticut colonies started in the 1600s.
The hay grew more since the final cutting, so I could only mash the grass to 3 inches above ground. I did not get many non ferrous hits for 10 minutes,,but then got a solid one dollar hit that jumped a few times to 50 cents. Figured it was a large copper fitting, but as I lifted the coil, it lost the signal, and it showed a lot deeper than most targets on the E-class scale.
Dug down at least 7" before the target was in the pile, but then it hit a bit on iron and a few scratchy hits on dime??? It was on edge in the pile. A huge thick copper coin. No glasses with me but the condition was way too good, some corrosion and scale spots, but the rest was super nice.
My top bucket list coin is a Connecticut Copper large cent ,made in huge numbers around 1787. Well, they have the same woman sitting in a throne with a battle shield and scepter just like British coins....and the other side should have a weird spelling of Connecticut, with a V. I thought I saw that, so for two hours I thought I had one. Got home to see I had a larger coin, a Queen Elizabeth "penny" either 1838 or 58, it is soaking still. Bummed out
Anyways, I have been worried about getting asked to leave these school sites! As soon as I dug the copper, a tractor with a brush hog came into the field to cut back the edges. He cut for a hour then I could tell the tractor was idling behind me...he is walking towards me. But smiling, he asked if I found anything. I said I was a once a State employee like he is, so I guess you won't turn me in, so here is a coin I found. Ha, he is a hobbyist coin guy, and knew a lot about US coins!
Had a long chat about all the fields they own. He said "I won't give you my name, but nobody will bother you, go ahead and hunt, even the plowed field down the road marked as no trespassing". That field was once a test field, but he said testing was long time ago.
It should be a great field, early home site, and fresh plowed, so the stuff will be within reach