The US Army 42-Pounders of USS Cairo
The US Army 42-Pounders are displayed aboard USS Cairo in Vicksburg, Mississippi. One is a Pattern 1831 and two are Pattern 1845. All three were rifled for service during the American Civil War.
10-Inch Columbiads, Pattern 1844, in DuBois, Pennsylvania
Two US Army 10-Inch Columbiads, Pattern 1844, are displayed in Rumbarger Cemetery in DuBois, Pennsylvania. These two Columbiads were cast at Fort Pitt Foundry in 1854.