The stitching technique and the threads type.

                                          zekosauthetication

                                    zekosauthentication

                       zekosauthentication

Yes! The technique of Stitching and the type of the threads will tell a lot about your bag, so these are factors in authenticity. Was the bag re-stitched? Re-colored? is this the correct stitching for this piece from that Circa? are these authentic threads? Is it Machine or hand stitched? Is this the correct color of threads? Is the count of twisted strands on each thread accurate for this specific bag? Are the threads cotton, polyester, etc.? Did this style come with thicker threads? And on.

                           zekosauthentication

                            zekosauthentication

                            zekosauthentication