ASKEVOLD, David. Concert Tone Compressions, 1971.

(Amsterdam): art & project, 1972. Bulletin 48 issued to coincide with an exhibition from 28th January until the 18th February, 1972. The bulletin folds out to photographic image. A single sheet folded, to make four pages. Addressed and creased where folded for mailing although not actually posted. A very good copy.