Gerhard Altenbourg ”Der Schoß der Berge” 1968 Watercolour, Chinese ink, chalk and pencil on laid paper Lower left with the Altenbourg-stamp and the signature: Altenbourg. Titled and dated on the reverse: Der Schoß der Berge 1968 10 1/8 × 13 1/4 in. Formerly Gesellschaft der Freunde junger Kunst, Munich