OK, Henderson/Benjamin book "Guide to gas pump restoration" show two sizes, 13X17 and 9X12 (split pump).
Book show two different periods 1957-66 with square Atlantic logo and square place for the logo on the sign, and the design of the plate in the auction, time frame 1966-70 with the hexgonal Atlantic logo and hexagonal place on the sign.

(Jacks sign )with hex logo and square on the sign could be a transition time sign - they had a lot already made and just put on the 1966 logo? How is the logo fastened - a separate aluminum piece fastened to the sign or a painted part? Either would be possible i guess.

Br
Claes

Last edited by fast66; Sun Mar 14 2010 03:22 AM.