| Navy | The Soviet Navy |
| Type | Submarine |
| Class | M (Malyutka) |
| Pennant | |
| Mod | 4th group (type XV) |
| Built by | Sudomekh (Leningrad, U.S.S.R.) / Yard 196 |
| Ordered | |
| Laid down | 31 Oct 1940 |
| Launched | 7 Jul 1941 |
| Commissioned | 28 Oct 1944 |
| End service | |
| History | Transferred to Bulgaria on 03 September 1954. |
We don't have any commands listed for USSR M-203
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