This is an earlier Griswold slant ERIE.  The wording is not deep in the pan, which I'm told happened when they first starting making the slant logos.  The pattern letter below, instead of to the side of the number also lines up with earlier production runs.  This has some utensil markings on the cooking surface, and minor movement (1 paper) from 3 to 9.  All other edges sit flat.  This is due to heat ring wear, not warping.  

I'm adding 3 more layers to this pan before it gets shipped out.  Expect a darker color when it arrives.