Admiral (1813–1891) who helped improve the Navy as the superintendent of the US Naval Academy after significant service in the American Civil War. Original 4.25 x 6.5 cabinet photo by Bogardus Souvenir Card of New York, signed at the bottom of the image in black ink, “David D. Porter, Admiral.” In very good condition, with moderate damp staining to image, only slightly affecting end of signature. RR Auction COA.