Iron Butterfly – Ball (1969, Reel-To-Reel) - Discogs

Iron Butterfly – Ball (1969, Gatefold, Vinyl) - Discogs

Signal to Noise #52 - winter 2009 by Signal to Noise - Issuu

Iron Butterfly – Ball (1969, Reel-To-Reel) - Discogs

Iron Butterfly – Heavy (1969, Vinyl) - Discogs

Iron Butterfly – Heavy (1969, Vinyl) - Discogs

Iron Butterfly - Ball, Releases

Do you remember the first rock album you owned or heard? - Quora

Iron Butterfly – Ball (1969, Reel-To-Reel) - Discogs

Record Collector Issue 523 October 2021, PDF

Derek Lawrence darker than blue

WSHD 93.3

Iron Butterfly – In-A-Gadda-Da-Vida (1972, Vinyl) - Discogs

96 And 98 St Marks Place – 1537

Iron Butterfly - Ball, Releases

Iron Butterfly – Heavy (1969, Vinyl) - Discogs