Prev Next Category: Envelope Letter from Welke 1978-11-14 Robert Welke, USA Section: Mail Art Network Sent from: New York, NY, USA Medium: Printed matter Category: Letter, Chart, Envelope Dimensions (cm): 21 x 15 Pages: 3 Notes: Including a chart for "the Egmont Seminar" Subject: robert welke, i-ching, egmont seminar