Juan Gonzalez Alacreu (artist)
Printed in Issues No. 1 thru No. 8 of a British weekly comic book called Lady Penelope. This is the 1st such comic story in full color to appear and is 16 pages or 2 pages per issue. The UNCLE team is sent to Palma Nova to stop a THRUSH plot to steal British gold.
Here are the pages I have of it.