Digger, same thing for me by waterford while I was out river hunting for old bottles while the river was down this winter. Peaked quite a few people's interest why I was chest deep in 10 degree weather. Police even called my house when they saw my car sitting by the river and had my son call me to say the cops were looking for me. I didn't answer the police call as I didn't recognise the number, Nice to see they care. Found many late 1800's to early 1900's with the earliest being a 1840's flask. Was going to take out the detector but they just raised the river again.