Don says it's a knockoff. Mal says it's a Beesley best. Lowell says Beesley never put his name on a Beesley patent self opener. Someone else says he owns a Beesley that has "Beesley Patent" engraved on it. Oh, that was Lowell. I know which one of the three I trust the most, but what is the real story and how do we tell?