Silk Tweed Tote Bag

I believe the fabric is a silk tweed but I’m not positive   I asked my friend who is a professional seamstress and that is what she suggested. At any rate it’s super pretty and for some reason made me think of Mary Poppins bag, even though hers is entirely different:)
The tote measures 18 inches across by 13 inches tall with boxed corners for a roomy inside.