The bootlegs were made in the 60's and 70's and the purpose was to sell them at reasonable prices (maybe a little lower then what an lp was going for back then)and the buyer would actually listen to it. No one knew that certain records would be worth thousands of dollars down the road. The Introducing album was out of print at that point so the intent was not to deceive. If you look at the link in my last post you will see what you need to look at to determine if it is a fake. Ad backs were not faked because it was hard to reproduce the color graphics of the back cover.