Anastacia - the black congo bayswater looks good.
beejerry - I have never seen anything like that item, and the interior badge, gold print and initial stamps do not look correct, so I would say it is a not genuine.
The bayswaters are self-lined (unlined) as are the roxanne, ledbury, plus a number of other models. Items I have bought from Mulberry online have never come in a nice box with a bow, some have come in a plain white box with a barcode on, but never in packaging like you get with Jimmy Choo etc, so I don't imagine NAP would be any different with their Mulberry items.
Zips generally run right to left, but not always - it is another of the common misconceptions (and often cited in these so-called 'how to authenticate your Mulberry bag' reviews and ebooks) that if they run the other way then the item is fake. That is not the case, authentic bags in any model can have the zip running the other way, in fact some models virtually always have their zips running left to right.