Here's what I'm seeing of the 'ETHYL' lettering on the decal.
The lettering seems to be more blocky/wide than usual for an EGC Ethyl logo - but there really weren't any real hard and fast requirements for the lettering back then.
You just had to have certain words in a certain order to make Ethyl Corporation happy.
I'll be able to tell more when I have better photos or a rubbing of the actual remains.
Later . . .