There are thought to have been thirty-six transfer sheets in this Spanish series. Each set had the same cover, so you couldn't tell from the outside which set you were getting:
Sets were numbered from PM1 on; this set, PM24, has a different player photo on the inside left than the alternate PM24 shown later, & you can see the same thing happening with PM21 below.
If people were trading players, therefore, it could be possible for them to purchase considerably more than thirty-six players before completing their collection, & of course far more than thirty-six sets would have to have been bought or traded!
The series came from Productos Millonario via Transplastic, a promotional company who were also responsible for other Letraset promotions in Spain. There was also a sports equipment offer.
At the moment, we have nine different transfer sheets (with their backgrounds, of course) to show you.
A clear case of different player photos being printed with identical transfers & backing. Whether this was because new players became more popular in a subsequent season, or simply to increase the number of players to collect, is difficult to say without further evidence.
Practically all the images on this page provided by B27
Picture Credit: The SPLAT Scan Archives — with particular reference to B27
© Tom Vinelott 2023