Not sure why it has the Street El on top except for a vent [was there when I got the pump & left it]. On backside top of Totalizer it has a cast ring for a bolt to bracket.
Just above the 4 bolts you removed to remove the upper section, there is an inspection plate/cover, is that what your asking about or are your asking about a 6" x 7" sign? A 6" x 7" would be a CONTAINS LEAD warning sign. ETHYL signs are Round & were added to pumps selling it after 1923. The earlier ones have ETHYL GASOLINE CORPORATION, NEW YORK, U.S.A. spelled out in banner @ bottom, later ones have ETHYL CORPORATION @ bottom.