Spectrum XLT, sold.
Garrett Ace 250.
Minelab Excal II.
Playing with a Garrett XL-500, it got wet.
Minelab Nox-600.
Garrett pinpointer Pro, Garrett Carrot.
Sure looks like nickel but too smooth for a natural chunk imho.
Nickel as a refined product?.
Not sure if nickel will stick to a magnet or not.
If it is nickel it's worth a bit I think.