Led Zeppelin "III" tape cassette

I know people freak out about “II” and “IV” but this may be peak Zepp, even if the songs are not as uniform as those other records. Features “Immigrant Song” and “Since I’ve Been Loving You.” The playing is absurd. And this is a very early version of the cassette, in that cold school, softer plastic clamshell. Better than eight track but a similar vibe. This is as much a collectible as a classic album. Cassette in very good vintage condition.