Griswold No. 262 Pan Real or Fake...?

Hello all,

I picked up these Griswold No. 262 Cornstick pans at a tag sale some 25 years ago while in Virginia. I recently gave them a cleaning and upon some research I was unable to determine if they are real Griswolds or fakes. My concern is that the Erie, PA. mark is missing. In my eye the castings are clean and sharp and their weight is substantial. I have three of them, 2 of which are marked with the letter B and the 3rd with an A. I'd appreciate any comments or direction.

Thanks,

Sam.