The first pair are both Model 1857 12-pdr light gun howitzers, more popularly known as federal Napoleons.
1. Foundry - Revere Copper Co. Boston, MA, Reg.# 143, Inspected by TJR (Thomas Jackson Rodman), Foundry# 145, Year 1862, Mtl. Bronze, Weight 1220 lbs.
2. Foundry - Revere Copper Co. Boston, MA, Reg.# 270, Inspected by TJR (Thomas Jackson Rodman), Foundry# 271, Year 1863, Mtl. Bronze, Weight 1241 lbs.
The second pair are both Confederate 12-pdr Napoleons.
1. Foundry - Leeds & Co. New Orleans, LA, Foundry# 46, Year 1862, Mtl. Bronze.
2. Foundry - Leeds & Co. New Orleans, LA, Foundry# 54, Year 1862, Mtl. Bronze.
All four guns are located by the Ft. Gordon Post Signal Museum located on Chamberlain Ave.
The two CSA Napoleons with that beautiful green patina are both from the famous Semple's Alabama Artillery Battery which took its popular name from Capt. Henry C. Semples. The battery was organized in Montgomery, Alabama in March of 1862. The other two CSA Napoleons that made up the armament of Semple's Battery are located on the Augusta State University campus. Bronze was a rare commodity in the South at this time, these four Napoleons all cast by Leeds & Co., were supposedly made with bronze that came from bells that were donated to the cause by Louisiana churches; Leeds & Co. made an even dozen 12-pounder Napoleons.