The last four sets in the World in Action Transfers range had serial numbers starting with GK136, & as luck would have it, I managed to find an "uncut sheet" for this serial number which had been cut up & partly used. The good news is that the used transfers were all on the quadrant of the sheet that I already had covered from an unused set, so I've been able to recreate not only the individual transfer sheets but also the whole uncut sheet.
The not-so-good news is that for the other three of the four, we don't have backgrounds! No doubt they'll turn up soon enough. For the time being, I've included their thumbnails (taken from the back cover of No.10), which will give you some idea at least. And it's no surprise to see that the missing backgrounds are more World maps…
For "Marine Life" we do have these additional images, provided by a helpful contributor:
You can see that there was a text sheet included as well as the background & transfer sheet.
Picture Credit: the SPLAT Scan Archives
© Tom Vinelott 2023