Recognize this tattoo?

Investigators say it's on the right shoulder of a body found in the Mystic River off Charlestown yesterday - and are hoping it can help identify the man it belonged to.

The Suffolk County District Attorney's office says the man was black, about 6 feet tall and 160 lbs, in good physical shape and believed to be between 20 and 35.

State Police divers who recovered his body say he was in a black Everlast hoodie, black sweatpants and a black T-shirt with the legend "AF-1" and the image of a crown on the front. He also had on brown Timberland boots, size 11 medium.

According to the DA's office, State Police noticed his body yesterday morning near the Boston Autoport upriver from the Tobin Bridge while providing security for an incoming LNG tanker. An autopsy showed no physical trauma or injuries.

Anybody who thinks they know the man should call State Police at 617-727-8817.