Brass Corps Badges In lieu of cloth corps badges, many of the Union's enlisted and officers purchased brass corps badges (painted and unpainted) from jewelers and private contractors. Our brass corps badges are available in natural finish for the following corps: 2nd (club), 7th (crest and star), 9th (anchor and cannon), 12th & 20th (star), 14th (acorn), 15th (diamond with 40 rounds us), 17th (arrow) & (star with corps and 17), and 23rd (shield). Original 7th Corps Badge. Original 9th Corps Badge. Original 14th and 17th Corps Badges.