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Information on the back:
Striped tanagra. South America & Yacht texter SE Himalaya W. IndoChina
From RKD:
Tournai, Catharina Maria ('Tini') from: born Watergraafsmeer (Amsterdam) July 25, 1906. Lived and worked in Amsterdam. Student at the Rijksnormalschool and the Rijksakademie in Amsterdam (1925-1929). Artist (also in pastel) of landscapes and animals. Created topics related to farming and life (people and animals). From 1930-1954 member of 'St. Lucas' in Amsterdam, member of 'Arti et Amicitia' there since 1954.
One of both drawings has damage in the form of a stain