Do a web search there's plenty of them out there: Harley hanger handlebars
Been looking for em for past few day, no one seems to have that specific style.
In many cases bars that you see in a pic may have been custom made. In that picture, it looks like an O.C.C logo in the corner (American Chopper). From memory, it was a common style of bar used by them. There's so many makers of Harley custom bars out there, finding an exact one may be very difficult. You may have to settle for some that are close to what you want.