1974 Bimbo El Libro de las Adivinanzas

Country of origin: Spain
Size: 2-1/8" x 2-7/8"

This 266-card set and corresponding album from Spain translates to "The book of riddles". The cards are unnumbered and there is only one basketball card in the set, which comes on a page titled "Su Majestad El Balon" which translates to "Your majesty the ball".

Additional resources: More info