photography, The construction of the state trigonometric signal, 1932, 1935, 13.5х8.5 cm, 5 psc.
printed work form: | photography |
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title: | The construction of the state trigonometric signal |
language: | latvian |
year of impression: | 1932, 1935 |
dimensions: | 13.5х8.5 |
additional information: | 5 psc. |
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