The Justified Ancients Of Mu Mu - Whitney Joins The J.A.M s

First release. B-side is smooth, later reissues have a tone groove.
Both sides labeled "bpm 120 Whitney joins the J.A.Ms" and nothing else.
There are also DJ copies, which have blank labels on the blank side - see entry here [r6662987].

Some copies have an additional "S" in the runout (i.e. "JAMS" instead of "JAM") which is thinner and fainter than than the other parts of the runout and has large bars or serifs on either end.

Comes in "KLF Generic Sleeve A" (some with "Made In England" stamped/stickered on them) or a plain black sleeve.
Said to have been limited to 500 copies but there is nothing on the release to confirm this.

KLF Generic Sleeve A: has a repeating pattern of "Diamond KLF" logos, "12INCH" logos (all the same size), and muddy "'Justified' in Pyramid Blaster" logos with "(C) 1987 The Sound Of MU(sic)"; "A [Diamond KLF-logo] Communications Company. For further information write to P.O. Box 283, HP22 5BW. enclosing S.A.E." at the base of the sleeve, printed Black on White on one side and White on Black on the other. (See images).