Other than a few kits in catalog pics that had a different logo like the circle with the design in it, I think the logo was standard size for every head.
Mine were Black heads with the silver/gray ink.
White obviously had Black, but I never saw a Black head with White logo.
I was not able to find the heads, and no one has gotten back to me on the logo size.
The logo looks pretty big on the head (--and I think the blue kit in you post pic was from around the 84 catalog ). I'd guess the size to be between 8-10", probably 10" from what I remember on my heads, and looking at the pic.
My best guess is all I can do on this one....