supergirl # 415 feb 1972 - supergirl vs the space pirates.

Supergirl # 415 Feb 1972 - Supergirl vs The Space Pirates. From here
Out of print Supergirl comics can be found here.

dope rider (paul kirchner) the first three strips (1974)

The first three strips of 'Dope Rider' by Paul Kirchner, featured in 'Harpoon' and 'Apple Pie', later to become better known through 'High Times'.
From Paul Kirchner's 'Dope Rider' blog.
His own website is here.