- The Baltimore Museum of Art Exhibitions, 1948, 1949, 1950, 1951, 1952
- Corcoran Bi-Annual Exhibition, Washington, DC, 1951
- Baltimore Artists Exhibition, Peale Museum, 1951–52
- A.C.A. Gallery of New York, 1951–52
- Fulbright Artists Exhibition, Rome, 1954
- International Exhibition, Uffizzi Gallery, Florence, Italy, 1955
- Venice Biennale International Art Exhibition, 1956 (Invited Artist)
- Venice Biennale International Art Exhibition, 1958 (Invited Artist)
- Fulbright Painters, Whitney Museum of New York, 1959 (Invited Artist)
- 10th Gutai Exhibition, Osaka, Japan, 1961 (Invited Artist)
- "Priz Marzotto" Exhibition, 1964 (Invited Artist)
- Salon de Mai, xxiII, Paris, France, 1966 (Invited Artist)
- Espaces Abstraits Exhibition, Stadler's Gallery, Paris, France, 1967
- First Prize, Biennale de Menton, France, 1968
- Centre de Services d'Information et de Relations Culturelles de l'Ambassade des Etats-Unis à Paris, 1969 (Three-man show)
- American Cultural Center of Paris, 1969
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