Any advice on whether these promos are genuine or fake?

I bought these on eBay from a seller with extensive great feedback, so thought there would be no question of authenticity. But when it arrived I noticed there is a silver Toei animation sticker on the back of the cardboard (as shown in last picture). Other ones of these I’ve seen don’t seem to have this sticker but instead it’s printed directly onto the cardboard itself, is this an indication of it being fake? If it is counterfeit would it not have been better for them just to print the sticker directly onto the cardboard like the others though? As it’s obviously in their capabilities to directly print it, I don’t understand if it is fake why they wouldn’t have just done that submitted by /u/The_legend_of_toast [link] [comments]