set of documents, awarded to Sinoy Shmerkovich Bas-Dubov (1899-1987, Soviet design-engineer, specialist in propellers for combat aircraft, laureate of 2 State Prizes): certificate of qualification of a mechanical engineer (1928), diploma of a candidate of sciences (1947), certificate of a senior research assistant (1948), USSR, 1928-1948, 35.2 x 45.5 cm, certificate - paper is torn along folding lines
| printed work form: | set of documents |
|---|---|
| title: | awarded to Sinoy Shmerkovich Bas-Dubov (1899-1987, Soviet design-engineer, specialist in propellers for combat aircraft, laureate of 2 State Prizes): certificate of qualification of a mechanical engineer (1928), diploma of a candidate of sciences (1947), certificate of a senior research assistant (1948) |
| country: | USSR |
| language: | russian |
| year of impression: | 1928-1948 |
| dimensions: | 35.2 x 45.5 |
| additional information: | certificate - paper is torn along folding lines |
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