Juan Hidalgo, Esther Ferrer, Walter Marchetti.
Zaj en Bilbao.
Bilbao: Zaj, 1968.
Double-sided card.
4.9 x 9.8".
Card scored down the middle and printed in red on recto and verso on tan card stock.
Unfolded example with faint bumps to corners, else near fine.
On the back is a list of pieces by Eugenio de Vicente, Juan Hidalgo, Walter Marchetti, Tomás Marco, Javier Martinez Cuadrado, José Luis Castillejo, and Ramiro Cortés,