His grandfather was a big-time NASCAR fan and collected the giant postcards that were handed out for free at races.
Mansfield had collected more than 300,000 of them.
His widow sold some to pay Monte's tuition and expenses at Michigan's Mott Community College.
But there's more to the collection than just the postcards.
The Flint Journal reports Mansfield had everything from a tire off of champion Richard Petty's race car to an autographed can of STP oil treatment.
