rich is correct,early 53-55 oval wings are 3/4" wider,the area around the headlamp is more sharper/pronounced and the rear running board hump/buldge is larger/more pronounced and the sweep/curve of the front face of the wing is different.
best way to get a correct matching pair is to put a piece of card board behind the front face of the wing from the first lower valance bolt hole up to the top edge of the wing and draw around it and cut it out then flip the template over and fit it up to the other side wing.alot will be different in shape due to incorrect wings I.e early/late and there is the chance of rust/damage repairs being done in this area and not to the correct shape! the amount of ovals/bugs including some high profile build cars I see with miss matched front wings is crazy once you know the difference it stands out a mile from seeing the car head on
how many after reading this post will draw that template on there car wings and be surprised the shape is way off! due to incorrect wings or repairs to the wings :wink: