All four sets in the Hanna-Barbera range shared the same serial number.
Due to a certain amount of overlap when cutting some of the individual sheets at the factory, I've been able to accurately recreate the whole uncut sheet (one of my favourite things to do):
The transfers are naturally constrained by Hanna-Barbera's character sheets, but I think you'll agree the backgrounds for these sets are unusually good — particularly in their use of colour.
If you look carefully at the upper right-hand edge of the sheet above, you can just make out the title of the fourth in the range: "Scooby Doo".
Here are the other Super Heroes & related series:
Picture Credit: The SPLAT Scan Archives
© Tom Vinelott 2020