Is this vintage Mulberry briefcase authentic?

[sarah_e_styles]

I would like to know if this vintage Mulberry briefcase is authentic. There is no serial number and no brass disc. I have read that some of the older bags do not have serial numbers. I would like to hear your opinion. Thx!

[dontaskmeidunno]

Authentic MULBERRY "Roger Saul" Leather Double Belted Briefcase / Messenger Bag.

[albertabrightalberta]

@sarah_e_styles 

I don't believe this discussion board has any Mulberry experts (who really know the brand) but if you want an accurate answer from someone who knows the brand, google "Authenticate This MULBERRY lakrits," you'll find a place where you can ask your question and get an answer from someone who IS a Mulberry expert.