Built up US 16 inch Howitzer.jpg
en
Built up US 16 inch Howitzer, Sectional view of a buil-up US 16 inch Howitzer Model of 1920
commons
en
Built up US 16 inch Howitzer, 16 inch M1920 howitzer, Artillery drawings, Gun barrel cross sections
commons
ja
米16インチ榴弾砲を増設、米16インチ榴弾砲を一部改良
commons_translated
ja
製造 米16インチ榴弾砲、16インチM1920榴弾砲、砲兵図面、銃身の断面
commons_translated
built-up cross-sectional purpose-built inchoative by inches in gun barrel sectional