recently acquired
1963-I. Avant Garde Festival - 21.5 cm x 14.2cm
1964-II. Avant Garde Festival - 56.2cm x 30.6 cm
1965-a-III. Avant Garde Festival - 63.5 cm x 19 cm
1965-b-III. Avant Garde Festival - 63.5 cm x 19 cm
1966-IV. Avant Garde Festival - 73 cm x 18.3 cm
1967-V. Avant Garde Festival - 74 cm x 18.3 cm
1968-VI. Avant Garde Festival - 78.7 cm x 17.7 cm
1969-VII. Avant Garde Festival - 78 cm x 18 cm
1971-VIII. Avant Garde Festival - 85 cm x 55.2cm
1972-IX. Avant Garde Festival - 87.2cm x 54.5 cm
1973, X. Avant Garde Festival - 87.2cm x 54.5 cm
1974-XI. Avant garde Festival - 72.4 cm x 56 cm
1975-XII. Avant Garde Festival - 91cm x 61cm
1976-XIII. Avant Garde Festival - 73.6 cm x 58.4 cm
1978-XIV. Avant Garde Festival - 71cm x 55.7 cm
1980-XV. Avant Garde Festival - 89 cm x 58.5 cm
1962-09-01 later reprint
1962-11-23 Copenhagen - Denmark
1962-12-03
1963-02-02 Dusseldorf - Germany
1963-02-02-limited copy-Dusseldorf-Germany-a
1963-02-02-limited copy-Dusseldorf-Germany-b
1963-03-11
1963-03-11 No. 22
1963-03-11 No.22 - later reprint - Tate Modern - London
1963-03-11 No. 21 - back of No. 22
1963-03-11 No. 40
1963-03-11 No.40 - digitally revised version
1963-03-11 No.39 - back of No. 40
1963-03-11 No. 74
1963-c- 22cm x 32cm
1963-06-22 Amsterdam - Netherlands
1963-06-23 Amsterdam - Netherlands
1963-06-23 - 2nd copy
1963-06-23 Amsterdam - Netherlands
1963-06-23 - 2nd copy
1964-06-26 Galerie Loehr - Frankfurt-Niederursel - Germany a
1964-06-26 Galerie Loehr - Frankfurt-Niederursel - Germany b
1964-07-20 Aix La Chapelle
1965-02-26- 49.3 cm x 38 cm
1965-05-17- 54.8 cm x 32cm
1965-06-05- 50.8 cm x 64.7 cm
1965-06-05-Wuppertal-Germany
1965-06-25- Firenze - 34.8 cm x 24.7 cm
1966-03-13- 49.8 cm x 43.2cm
1967-02-09- New York - 32.7 cm x 20 cm
1967-04-26
1968-03-12- Rochester - 28 cm x 21.5 cm
1968-03-29-a
1968-03-29-b
1968-04-01- Cincinnati - 55.8 cm x 35.5 cm
1968-04-06 Union Terminal and Science Center - Cincinnati - USA a
1968-04-06 Union Terminal and Science Center - Cincinnati - USA b
1968-06-10-a - New York - 43 cm x 21.4 cm
1968-06-10-b- New York - 43 cm x 21.4 cm
1969-Japan-a