bn:02195841n
Noun Concept
JA
50口径12cm連装砲  QF 4.7インチ砲Mk.IX  QF 4.7インチ砲Mk.XI
EN
The 4.7 inch QF Mark XI was a 50-calibre, 4.7-inch naval gun mounted on Royal Navy and Allied destroyers during World War II. Wikipedia
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