The innovator is described as "one of the true pioneers of British musical equipment".
Tony Iommi's guitar is put up as a prize to support Heartlands Hospital in Birmingham.
The musician, who was diagnosed with lymphoma at Heartlands Hospital, wants to give back to staff.
Tony Iommi says Black Sabbath's final gig will be like nothing the band has done before.
The heavy metal band and late poet are seen as core parts of Birmingham's cultural heritage.
Kirk Andrews has 50 portraits of musicians on show in a Birmingham music bar.
