I just took out an old pair of Michelin tires from my storage and thinking about selling them on a local marketplace. I think they are called wildgrippers but i`m not sure. Is the code on the first picture saying anything about the production date? Also if anyone knows what these sell for it would be appreciated. Thanks.

I believe that is Michelin's part number. Date and production information is typcally stamped in ink, on the inside of the carcass.

No sign of any stamps on the inside unfortunately.