Underground Comix are known for using different prices, covers (art or color variations) and interior content to distinguish different printings.
1st print January 1977 has 1.25 USD cover price.
2nd print December 1977 has 1.25 USD cover price.
Inside front cover contents credits with illustration and indicia information. Sequence content from 2nd printing. 1st printing with different content?
Advertisement for titles from Star*Reach Productions on inside of back cover.