Prev Next Medium: Cardboard Postcard from Mertens and Kaa 1984-12-31 Mertens und Mertens, West Germany Section: Correspondence A-Z Sent from: Solingen, West Germany Medium: Cardboard, Paint, Pen Category: Letter, Envelope Dimensions (cm): 9 x 14 Pages: 1 Subject: mertens and mertens, m&m, performance, car, performance, abba, m&m - a world art tournee