Twelve zaj publications in two envelopes mailed by Juan Hidalgo
Madrid: el grupo zaj, 1968–1970. First edition. Twelve items of various sizes and formats, printed in various colors on varying paper types. Housed inside their two larger original mailing envelopes dated March 1968 and March 1970, respectively. Three items inside two smaller envelopes. With each mailing envelope bearing Juan Hidalgo’s.....