Track 1-12 from the original album (1969).
Track 13-18 are additional tracks taken from singles.

Tracks 1 to 6 originally released as a private pressing of 99 copies in 1971
Tracks 7 to 12 are the 2nd album previously unreleased (1973)
Tracks 13 & 14 are the final demo (1975)

Tracks 1 to 6 recorded at SRT Studios, Bedfordshire, UK, in 1971
Tracks 7 to 12 recorded on a 2-track tape machine or maybe an 8-track in September 1973
Tracks 13 & 14 recorded on 8-track in 1975

The CD comes with a 40-page booklet with photos and extensive liner notes

Tracks 13 and 14 appear on the CD and Die Hard Vinyl editions of the release.

All information are taken from the booklet, including liner notes

promo