An Exhibition of Correspondence Art. Including essays by Ken Friedman, Mike Crane and Charlton Burch. 1978 (en).

Charlton Burch sent us the pdf of this catalog, now long out of print, was a limited pressrun of 500 copies. So maybe a few more eyeballs will find it there.
Charlton Burch
Lightworks Magazine
PO Box 1202
Birmingham, Michigan
48012-1202 USA