ORIGINAL: Plumbata
Killer plate cryptic, I bet that one is worth some good $$. Never heard of these before but I sure do like them now that I know they exist!
Is it copper or brass? Good thing it was nonferrous otherwise it would just be another pile of rust dust. If I dug one it would be my favorite find even if I got bottles worth the same amount or more. Not too many of those around, certainly.