Underground Comix are known for using different prices, covers (art or color variations) and interior content to distinguish between printings.
1st print (Version 1) has 0.50 USD cover price and has pages out of order.
2nd print (actually still 1st print)(Version 2) has 0.50 USD cover price and pages in correct order.
Corrected version is indexed.
Inside front cover illustration with introductory text and indicia information.