(NEXSTAR) — Last week, President-elect Donald Trump unveiled his latest business venture: signed “Make America Great Again” guitars selling for as much as $11,500. They may not be available much longer, since Gibson has accused the guitar’s maker of ripping off their own design.

The 130-year-old guitar maker alleges that the instruments infringe on its design trademarks, particularly the famous Les Paul model.

While the seller Trump Guitars is not directly owned by the president-elect, its electric model is marketed as "the only guitar officially endorsed" by him.