hello, i am not an expert on mulberry, but my emmy mulberry has got serial no. on the back of the metal mulberry plate, but my rosemary (which i bought from Nordstrom Rack) doesn't have any serial no on the back, also, it has got a small leather tag inside says that it was made in spain. do you think this is still authentic? or I might be a victim bait & switch - someone might have returned a fake one and I bought it? i feel so puzzled now.