This issue has variants.
Underground Comix are known for using different prices, covers (art or color variations) and interior content to distinguish different printings.
1st print March 1980 has 1.25 USD cover price and says 54321 on inside front cover.
2nd print November 1983 has 1.75 USD cover price and says 5432 on inside front cover.
Inside front cover with indicia information at bottom of page.
Inside back cover advertisement for book 'Goodman Beaver' from Kitchen Sink Press.