175/70R16 24.3" x 6.9".
Looks like a impliment/tractor wheel.
Here is a example that looks close to yours.
New Parts for Old Tractors
www.steinertractor.com
Most truck rims have a "ring" around the rim which strengthens it.
The 62 Series O.E. Chevy-Ford wheel in primer is a versatile wheel available in sizes from 14-17
www.wheelvintiques.com
It could be something like a trailer, tractior, or custom truck spare.
Knowing the hub diameter and the bolt pattern will narrow things down further.
My guess is that's a tractior rim due to what looks like a skinny 5 bolt rim with a small tire and large hub. Someone probably threw cheap/free tire on it to drive it around the yard etc.