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203-мм гаубица образца 1931 года (Б-4)
203 mm howitzer M1931 (B-4) (Russian: 203-мм гаубица обр. 1931 г. (Б-4), GRAU index: 52-G-625) was a 203 mm (8 inch) Soviet high-power heavy howitzer.
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Updated 28 Sept 2026. Something wrong? Tell us.