Anthology Of The Blues - Archive Series

Initial a series launched approximately September 1970 by the Kent label. It includes 12 releases with sometimes a couple of unissued tracks, so not always clear whether this are compilations. Early releases still show the orange label design with white spot. The early versions had a gatefold cover with sometimes different colored background at later releases. It is still not clear how many releases were initial release with the orange label design. At least the later one was initial released with the hexagonal successor label design. Later reissues wear the purple United Records (11) label design and have different covers. In the late 70s the label changed once more to the yellow Kent labels. Please state at least clear notes for the label design and the innerspread, possibly provides images.
Due to the linked Wirz-page below the French reissues were released in 1976 throughout. The cover was very similar to the US releases and mention Musidisc-Europe as the distributor.