I have a set of wheels but none of my references has info on '60's wheels in that size. The pictures tell the story. What you can't see is the faint "JK" after the "14X6" stamping. The only numbers near the valve stem are a 6 on the left and a 0 on the right. The "H" has a tiny "9" between the goal posts. The "831" might be the lasts 3 digits of a part number shruggy Bolt pattern is 5 on 4.5".

wheel 14x6 b.JPGwheel 14x6 a.JPG