Prev Next Category: Envelope Krononautical Communications 1981-07-05 David Zack, USA Section: Correspondence A-Z Sent from: Edmonton, Alberta, Canada Medium: Paper, Coloured paper, Photocopy, Printed matter Category: Letter, Booklet, Envelope Dimensions (cm): 21.8 x 14 Pages: 6 Subject: david zack, krononauts, chrononautical communications