It seems like they may have called the 1970 tape
The King of the Hard-Mouthed Poets (which would explain the "King of Poets" title for the CD bootleg of the tape). They ran this ad in a lot of issues after the initial release.
Here's an earlier version of the ad Digney posted previously. This one has a "pre-publication" price $2 less than the publication price (later versions of the ad above list the price at $5, so they were discounting them after they sat around for a while). That price of $6.98 is the equivalent of about $45 today, so I'm not surprised they didn't fly off the shelves. Or out of the storeroom or wherever.
Of course if, as our hit and run one-post friend earlier in the thread says, the tape was issued without a cover, maybe it never really had a title. The CD bootleg people could have got the
The King of Poets name from an old
NOLA Express like the one above.
Seems odd to me though that a $45 tape wouldn't have a cover. Especially since they were in the newspaper printing business. And they went to the trouble to shrink wrap it, but didn't bother with an insert? Yeah, I don't know. Would be great to see one of the originals.