Yana Toboso was a yaoi doujinka prior to she authored Black Butler, which spelled out why there are several notable BL hints all over the collection. Considering that the eighties, the primary way of distribution has been by means of standard doujinshi conventions, the most important of which is

Each and every bag has the artisan's stamp, however it's not one of a kind to every bag. Stamps from more than one artisan might seem on the same bag, because the stamp isn't a serial reference. Fonts and stamp purchase can vary in between artisans.[24] The Birkin bag can be distinguishe