Looks like the brand is Lande. These are Chinesse made tires (P.R.C.= Peoples Republic of China). In my business Chinese made goods are of suspect quality. If all you want is to move the tractor around to shows and hold the rims off the ground they may be OK for that but IMHO I would not trust them for much else.
Check out this Web site.
You can bet any steel belys, beads, etc. in these tires used to be Cases, JDs, Farmalls, etc.
Any further and my personal biases get in the way more that they already have.
No offense to anyone, just trying to share some info.