I mailed out a nice little 16 double to a buyer to his FFL. Yesterday I get a call from the FFL. He said "we don't know what kind of gun it is". I couldn't contain myself laughing. I said I'm sorry, it isn't a black pump riot gun for sure. I explained the make which was a traditional maker from UK and that the gun is a double barrel. How is a gunshop worker ignorant in old doubles?