Didn't know that the Super-Guppy had been produced from Boeing.
So Airbus was Boeing-Client? And Boeing helped Airbus to produce their planes (indirect)? Cool partnership
The Guppy itself was not a Boeing design, but the platform was (Boeing 377 Stratocruiser) Aero Spacelines made it into the Guppy. Boeing had nothing to do with that part. Still, in essence, the Guppy is a Boeing.