These are a series of posters that Chocolate Eduardo Pi produced along with their widely distributed cards for the year. These poster were redeemable by submitting 40 "tickets".
The posters featured team photos of the starting 11 of a variety of teams from Spain and the rest of Europe. There are a total of 28 posters that make up this set of posters.
It also appears that the different Series span across multiple year.
Checklist
Serie 1a
1 Sparta de Praga 2 Servette de Ginebra 3 Saint Mirren (Escocia) 4 Notts County (Nottingham)
Serie 2a
5 F. C. Martinenc 6 F.C. Barcelona, Campeón de Cataluña y de España 1922 al 1923
7 C. D. Europa
8
Serie 3a
9 10 At. Sabadell 11 F. C. Terrasa 12 Ateneu Deportiu de Sant Feliu de Guixols
Serie 4a
13 F.C.Barcelona, en el homenaje a Gamper
14 F. C. Badalona
15 Reus Deportivo
16 Avenç del Sport
Serie 5a
17 Unión Esportiva de Sans
18 Iluro de Mataró
19 CD Europa, actual Campeón de Cataluña (1923 al 1924) 20 FC Cartagena
Serie 6a
21 Valencia F. C.
22 F.C. Sevilla, campeón de Andalucía 1924-1925
23
24
Serie 7a
25 Valencia F. C. 26 27 Racing Club de Madrid
28