Siege artillery in the American Civil War - Wikipedia
Karl-Gerat Mortar Battery – GHQ Models
Flames of War: Soviet 160mm Mortar Battery | eBay
3D Printable Soviet mortar battery with two servants (17) - (pre-supported version included) Soviet army WW2 Second World World East front Ostfront by Hartolia Miniatures
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Quiet Day in the Mortar Battery by Fenton (1855) by ArtLoversOnline
Virtual War Memorial | 4th Light Trench Mortar Battery