Found this piece of equipment (?) left behind by a previous owner and am trying to figure out what it was used for.
It's a thin, square metal plate with rounded edges. It's maybe 14 by 14 inches. On the bottom is a piece of wood shaped as a handhold and a thick rubber ring.
On the top are concentric circles of a thin wire. The wire forms disjoint circles, not a spiral. There are 11 of them.
My two guesses (neither of which fully makes sense) are
- Maybe it's some kind of tamping or stamping tool? But it doesn't have any grout, mortar, or concrete residue on it.
- Maybe it's a radio antenna that you walk around with while listening for a wildlife collar? But it isn't clear where you'd clip any wires.