World War II era U.S. Navy submariners commonly fashioned informal battle flags adorned with symbols marking the successes they achieved during combat war patrols. Compared with those of other American submariners, the battle flag crafted by the crewmen of the U.S.S. Barb stands out as one of the more remarkable. Under Commander Eugene B. “Lucky” Fluckey, Barb is credited with sinking more than 29.5 enemy vessels totaling an estimated 146,808 gross registered tons—causing severe damage to a number of others. These successes are represented in graphic form around the Barb logo of “One Eyed Herman” in the center of the ocean blue field battle flag. Including a Japanese train pictured at bottom center, The USS Barb is the only US submarine credited with that honour. Prominently appearing at the top of the battle flag are icons of the notable citations and medals that were earned by the Barb officers and crew. Fluckey was designated to wear the Congressional Medal of Honor on behalf of the Barb crew for their collective heroism during the eleventh war patrol. Thus, the ribbon for this singularly prestigious medal appears at the top center of the Barb battle flag. these flags were presented to high ranking crew members of the ship as commemoratives. The flag measures 29 by 27 inches framed and is in good condition with some water staining commensurate with age.