GERTRUDE O' BRADY (1903-1978) Ensemble de 8 portraits et un projet d'affiche d'exposition certaines signées mine de plomb sur papier some signed graphite on paper various sizes tailles variables Footnotes: Provenance Collection particulière, France. Collection particulière, France (acquis auprès de celle-ci). For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing