i just had new tires put on at Herman power in Nac. took off 4 toyos in the back and two michelins on the front. all are dated from midsummer of 2009, just a little over 5 years old. the two michelins especially are in very good condition lots of tread no visible cracks. about 45000 miles on them. they would not give any trade in and I have no use for them. they are sitting at Herman power. if anyone wants them let me know and I could have them held for awhile.
Would guess those tires are already moubted & inuse on a low deck trailer, a. Very popular size for those trailers was told by the Michelin shop I used for all Six replacements, they were. Delighted to get them. No plugs nor patches.
You might see if they will give you some bucks if they sell them. I bought a used tire from HP to use as a spare. I think some of my money might have gone to previous owner.