Help identify the author

[alai58]

From his father's legacy remains a collection of works. This, basically, the schedule 60-70's. Among them are autolithography without autograph. Called upon to help identify the author. My father was very proud of living in this work. Thanks in advance.
Size of 42h45.

I would add that the work came from his father in the workshop no later than 1972. At that time he regularly went to the creative base, where apparently it was donated to sin a job.