The Vanguard Series Nr. I: A Collection of Postwar European Abstractions by STM (circa 1950s-70s)
The Vanguard Series Nr. II: A Collection of Postwar European Abstractions by JG (circa 1950s-70s)
The Vanguard Series Nr. III: A Collection of Postwar European Abstractions by STM (circa 1950s-70s)
The Vanguard Series Nr. IV: A Collection of Postwar European Abstractions by STM (circa 1950s–70s)
The Vanguard Series Nr. V: A Collection of Postwar European Abstractions by JG (circa 1950s–70s)
The Vanguard Series Nr. VI: A Collection of Postwar European Abstractions by STM (circa 1950s–70s)
The Vanguard Series Nr. VII: A Collection of Postwar European Abstractions by STM (circa 1950s–70s)
The Vanguard Series Nr. VIII: A Collection of Postwar European Abstractions (circa 1950s–70s)
The Vanguard Series Nr. IX: A Collection of Postwar European Abstractions (circa 1950s–70s)
The Vanguard Series Nr. X: A Collection of Postwar European Abstractions (circa 1950s–70s)
The Vanguard Series Nr. XI: A Collection of Postwar European Abstractions by STM (circa 1950s–70s)
