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13. Page 14 in the catalogue of the Sturm's 100th exhibition. 1921. |
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14. Page in the catalogueof the Sturm's 110th exhibition. 1922. |
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15. Herwarth Walden's postcard to MT. Berlin, 30 June 1918. |
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16. The reverse of the postcard. |
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13. Page 14 in the catalogue of the Sturm's 100th exhibition. 1921. |
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14. Page in the catalogueof the Sturm's 110th exhibition. 1922. |
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15. Herwarth Walden's postcard to MT. Berlin, 30 June 1918. |
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16. The reverse of the postcard. |