Prev Next Category: Envelope Letter from Grzesiak 1978-04-11 Krzysztof Grzesiak, Poland Section: Mail Art Network Sent from: Kalisz, Poland Medium: Printed matter Category: Letter, Envelope Dimensions (cm): 29.4 x 21 Pages: 2 Subject: krzysztof grzesiak, uniart, 8 slides-stop points, formular, pawel petasz