This civil war cannon barrel, just the bronze barrel casting , is 1875 lbs of bronze. Made in 1862. Weight and bore as well as model were stamped on the muzzle face. Smooth bore, most of them fired 12 lb balls, a few on display were 6 lb bores. They also had a few ferrous (cast iron?) barrels that were rifled.
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This was atop Lookout Mountain in Chattanooga Tn. We hiked up the mountain trails, about 700 ft up in a little over a mile(?), this was at the park on top. Downtown Chattanooga and the Tennessee river in the background. We wanted to also go visit the railway museum as they have an active machine shop that maintains the old steam engines for much of the region, but they closed at 3:30pm and a college football game made the traffic messy so that didn't happen.