1967 - Ernest de Soto founds Collector’s Press in San Francisco followed by de Soto Workshop

Tamarind Master Printer Ernest de Soto started the Collector’s Press Lithography Workshop in 1967 in San Francisco. In 1972, de Soto became a partner in Edition’s Press with José Luis Cuevas. In 1975, de Soto founded his own workshop called the de Soto Workshop, which “is known for specializing in contemporary Latin American and American lithographs, fine prints and etching by some of the best-known Latin American and American artists of our time.”^[3] 

Source: https://en.wikipedia.org/wiki/Ernest_de_Soto; photo source: http://www.angelfire.com/ab7/ernestf.desoto/