OSPAAAL (Alberto Ortiz de Zárate), "Day of solidarity with the Cuban Revolution," 1975. Offset poster,

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  OSPAAAL (Jane Norling), "Day of world solidarity with the struggle of the people of Puerto Rico," 1971. Offset poster, $600.00
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  OSPAAAL (Olivio Martínez), "Day of world solidarity with Mozambique," 1968. Offset poster. $300.00
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  OSPAAAL (Olivio Martínez), "Day of world solidarity with the Cuban Revolution," 1973. Offset poster, $800.00
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  OSPAAAL (Alberto Blanco), "Day of solidarity with the people of Guatemala / Día de solidaridad con el pueblo de / Journée de solidarité avec le peuple du," 1977. Offset poster, 28" × 19". $350.00
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  OSPAAAL (Olivio Martínez), "Day of world solidarity with the people of Mozambique," 1973. Offset poster, 27" × 19" $350.00