The inspiration for the Mushroom logo came from William Stout’s cover drawing for TMoQ’s Winter Tour 1973 / All Meat Music:
I would place most of the original multi-color releases from 1976 onwards, with re-pressings on Ruthless Rhymes following later.
Re-issue of Phonygraf 1105, original review is linked here.
The first one in the series seems to say “with Wizardo” in the lower right, pointing at a Vicki Vinyl/Wizardo co-production.
These are most of the known variations:
The Mushroom label designation was added to the bottom of the insert. Compare with original:
Volume 03: Led Zeppelin Blueberry Hill
I wonder when the stamp was introduced (to let prospective buyers know that inside the shrink wrap was not a boring all black piece of PVC).
Shades of mcv-green
Matrix: 1826 A/B
I discovered this previously unlisted reissue of CSNY’s WOODEN NICKEL, which I would add to the Mushroom series as well. Both confirmed sightings were on blue m.c. wax:
Matrix reported as 1833 A/B.
Taken from the previous Canyon Records issue, also found with Dittolino labels and under the (earlier?) title BLUEBIRD LIVE
Also found with blank orange or green labels.