All wheels are physically identical.

One front wheel is marked with a hand stamped vertical line over the “-“, the other is not.  One rear has a manual “-” rather than machine made.  All have an actual backspacing of 5.25″ to the outside of the lip and are 9-11/16″ overall.  Inside width is 8.75″  This indicates and offset of +10.3mm. (i.e. wheel rims moved 10.3mm inward)