Anyway, fans of Led Zeppelin and/or rockcrit history are encouraged to check out the following: Rolling Stone's original reviews of the first four Zep albums. I scanned these last night from my copies of the Rolling Stone Record Review Vols. I and II (small pulpy mass-market paperbacks published in the early '70s).

Led Zeppelin (John Mendelsohn, 3-15-69)
Led Zeppelin II (John Mendelsohn, 12-13-69)
Led Zeppelin III (Lester Bangs, 11-26-70)
Led Zeppelin IV (Lenny Kaye, 12-23-71)