Found this at a Civil War site last week,its thin brass and I wondered if it could be a hand fashioned spur rowel? I've seen them made of lead but in a pinch could brass have been used?
1970 COMPASS-
WHITES SILVER EAGLE-
WHITES DFX, 4X6DD COIL, 6X8DD COIL, 950 COIL, 10X12SEF COIL-
GARRETT PRO POINTER AT, GARRETT AT PRO , MINELAB EXPLORER SE with 8.5x12.5 Cors coil
I would say the diameter is roughly 6 inches in diameter. I'm thinking it probably wasn't a rowel in the making.Old Dude new avatar is my Minelab and a cool old tractor in Triune Tennessee where we had a club hunt last weekend.
Oh my, that would be quite a large rowel.
I'm just guessing that it is sheet copper that someone needed a hole in, but lacked tin snips. So, this is their scrap piece rather than the piece they were fashioning into something. Roof flashing for around a vent pipe comes to mind, but makes little sense for where it was found of course.
I agree with the drill used like a hole saw theory... My Dad always said, "When all you got is a hammer, everything else looks like a nail."
So when all you got is a can, everything else looks like an opener!