US Army 3-Inch Ordnance Rifles 415 and 416 at Vicksburg
Two US Army 3-Inch Ordnance Rifles at Vicksburg National Military Park
Two US Army 3-Inch Ordnance Rifles flank a plaque noting the service of the 12th Battery Wisconsin Light Artillery. I believe these to be registry numbers 415 and 416, though none of the photos I took of the muzzles are not great. Both rifles were manufactured in 1862 and both are marked as weighing 816 pounds as manufactured.