Found this old zenith AC/DC radio at a yard sale for $2

Looks like it's been sitting in a barn for quite awhile,the plastic dial window is warped beyond recognition (dial still works though),the knobs aren't much better and looks like the back cover is missing

But other than a few scuff marks,the cabinet is in pretty good shape! i have no idea how old this set is.Can anybody help me ID this little gem and is it worth restoring?
Regards.