Battery A's darling is this 15-inch Rodman Gun. Rodmans were cast in 10-, 13- 15- and 20-inch varieties, with the 10" being the most common: 1,301 10-inch Rodmans were produced between 1862 and 1867, of which 99 are reportedly still with us on this earthly plane (the rest exist in Rodman Heaven, which is likely floating somewhere above Pennsylvania, where most of them came from in the first place). 323 15-inchers were produced between 1861 and 1871, of which 25 are still around.