As Madmadmo says earlier bags didn't have serial numbers, though I am figuring as you've trying to check a number this bag has one. Hi Lucinda, Welcome to the mulberry forum.
She wasn’t seeing enough practical, classically. As she worked her way up to Fashion Editor/Head of Accessories, she noticed a gap in the handbag market. A journalism-school graduate born in Kansas City, Missouri, Katherine Brosnahan started her career in the accessories department at New York City-based “Mademoiselle” magazine in 1986.