The insert is usually brown/rust colored.
Usually found with blue or yellow “LED” or blank white labels:
discogs gives the impression that two different pressings can be found for copies with yellow labels. Those with RP 30 A/B 31 A/B matrices and those reading S-2549, S-2550, S-2551, S-2552. However, this may simply be a case of images and listing not matching. I suspect the S-25XX versions were not produced by WCF.
Shown here is a copy with confirmed S-25XX matrix, listed in HOTWACKS as Zeppelin Records version:
HOTWACKS states: “WCF – recording runs into the labels on S3 and 4”
One of the many copies of this famous early TMOQ release. The insert copied straight from an early TMOQ reissue (1,2,3,4 labels with printed double ring/borders – version).
Contraband would later copy this insert (before adding their logo) plus their matrix numbers were the same (30 and 31 A/B):
Around 1974, Berkeley Records reissued this title in their folder cover series, which featured images of the artist(s) on the back panel. The matrix numbers were unchanged: 30 A-/30 B, 31 B-/31 A