i got my mum's speedy 40 like around last year and its roughly 20-25 years old. it's in battered up vintage condition and the zipper is no longer original because my mum didn't really care if it had a cheap zipper. i later found out that vuitton does not repair bags that were already sent or repaired to a non-vuitton shop. okay. so one time i decided to check on its serial number. i didn't find one. but i saw two cornoers with the numbers 841 on the left corner and the letters SA on the right. could this be the serial number? or the bag is fake? i don't really think it's fake though. my mum buys designer stuff so why would she buy a fake like, 20 years ago? TIA!