Today I got out for about 4 hours. I met the guys at a plowed field that lies adjacent to a major road. Although the road is a modern asphalt highway it lies pretty much in the exact same place as the old Roman road that went from Lopodunum (now Mannheim, Germany) to Parisius (Paris, France). My first good find was a 1745 hammered silver (2 Kreuzer) and later I got a screamer signal at about 1 inch deep. I was 100% certain it was another shell casing but boy was I wrong! A BIG Roman coin popped out of the hole instead! Turns out it was only issued for two years in 41 and 42 A.D. The portrait on the coin is Antonia Augusta, mother of Claudius. He had the coin issued after she died in 41 A.D. I did find 2 more Roman coins but they are rotted to the point of being pretty much bronze slugs.
Here's some pics. Thanks for looking and happy digging!