It is an old style Jawa/Velorex that would be perfect for a vintage bike. For that matter it would be fine for a modern bike but it really should go to a buyer who wants it for a 1960's machine. These old "bath tub" Jawas are getting scarce and the price is pretty good. That business about it being a Velorex is just half true. Velorex is the company that bought, merged with or consumed Jawa back when phones had cords.
Of course that's just my opinion... you'll hear others.