[Kenth]

I have at least 4 United Motors 9X/Rochester Carburetor/Delco #9 Parts&Service Manuals from the 50´s to the late 80´s but nowhere can i find a picture of the gasket in the middle of my picture.
What is the part # on the middle gasket?
And, what does a 7013680 gasket looks like?
I have found 7013680 replaces 7015148 which replaces 7011325 and 7011326 which replaces 7011320 which replaces 7010540.