'31 front fender I.D. Q
 

Right front fender indentation longer than that of the left. Does not look to be poor repair/body work. Other than the indentation continuing to the edge, were there other subtle differences? Early '31 standard fordor.

Re: '31 front fender I.D. Q
 

I really can't see the seam on the picture on the right view (left fender) due to lighting. Are you sure one of them is not a converted 30? That seam is different on a 30 versus a 31.
Just a thought

Re: '31 front fender I.D. Q
 

There are 2 different types of correct 31 fenders.

The difference is in the length of the crease and you will find one has the curve of the fender go further down towards the running board. The other will be flatter.
You will also find the crease on one goes further down towards running board.

I surfaced this to the JS committee a few years ago. None of the big names in the hobby had noticed this till I brought it up. It turns out a known factory untouched original car had one of each on it so they were used interchangeably on the line.
No other details are known by me as to why there are 2 designs.

Re: '31 front fender I.D. Q
 

THanks Kevin. Good info. I am almost certain both are original, but we'll see. The difference is very subtle.

Re: '31 front fender I.D. Q
 

Re: '31 front fender I.D. Q
 

Thanks Marco. The driver front (pictured) indentation stops roughly at the beginning of the running board shield, whereas the passenger side goes farther down toward the running board. Perhaps that's a better clue.