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.
US Navy 32-Pounder of 42 Hundredweight Number 230 of USS Cairo
A US Navy 32-Pounder of 42 Hundredweight, Number 230, is displayed aboard USS Cairo at Vicksburg National Military Park. This cannon was cast in 1845 at the Fort Pitt Foundry. It is marked as weighing 42-1-18 Hundredweight (4,750 pounds). It was recovered with the sunken USS Cairo in 1964.
US Navy 8-Inch Chambered Shell Gun Number 348 on USS Cairo
US Navy 8-Inch Chambered Shell Gun of 63 Hundredweight Number 348 is displayed aboard USS Cairo at Vicksburg National Military Park. Number 348 is one of three of the 8-Inch shell guns aboard. Number 348 was cast at the Fort Pitt Foundry in 1845. It is marked as weighed in hundredweight "64-0-8" (7,176 pounds).