do you see the difference in these 2 pump signs?
your 2¢ .. ...

On the top plate the I is centered on the A. Offset on the lower.

I can't tell by the photos but the lower doesn't look "square".

Looks like the black Ethyl letters don't quite fit the white outlines on the second pic.

Bingo!!

Thicker white outline on the lower as well.

I have the lower version which I'm positive is an original!!!

mine is the bottom one that matches Jim's,
top one (questionable) just ended on ebay .. ...

http://www.ebay.com/itm/Vintage-original-FLYING-A-ETHYL-GASOLINE-porcelain-pump-plate/122664998001

I have the bottom one also and it's the real deal!

I have 2.....Each of which were obtained in the mid-late 1980s. One has the top of the "A" centered under the "I" of "Flying" and the other is offset to the left.

In thinking both are Good!!! Just 2 different vendors! Jim

To my knowledge, both are good. I believe I have owned both versions previously