Francisco Pagazaurtundua González-Murrieta, better known as Pagaza, studied in England and on his return to the Basque region he began his senior career with Arenas Club de Getxo- winning the Copa del Rey in 1919.
When his work took him to Santander he joined  Racing.
Pagaza played representative football with La Selección Norte and Cantabria . He was also a member of Spain's first international squad, playing at the the 1920 Olympics. He won a total of 7 caps.
Chocolates Bilbainos was, the card tells us, the chosen chocolate of footballers.