Not sure how rare this is, but my wife found a copy of Armageddon from 1974 in very good condition, sitting among her father's belongings, so likely from her older sister's teenage years. The band is composed of former members of The Yardbirds, Renaissance, Johnny Winter's band and Steamhammer. Only 5 tracks, so typical 70's long progressive rock tracks. Pretty good actually. Record label says promo copy not for sale so may have come from a radio DJ.