Examples of the type

Private collection
1962-7月-06 – (en) Series HC; Signatures: N. Fuentes / Luis A. Ortiz Bilbao / J. Salazar
155 × 67 mm

Private collection
1988-11月-22 – (en) Series IB; Signatures: José Morillo Batlle / Gonzalo Córdova Galarza / José Luis Alvarez
156 × 67 mm