This new book, by Richard Morton Jack and others, has fairly extensive coverage of the band, as well as a couple of pictures (one of which shows Room onstage).
Here is an extract:
"The musicianship is stupendous, with some of the most dextrous drumming and howling guitar on any such record, and the best of the songs are right up there with the best in the genre."
Thanks Richard for that.
See http://www.galacticramble.com/ for more details of the book.