Used for entrance exam practice. I purchased this new. There was a "B" stamp on the tag from the time of purchase, but I didn't notice anything else, and I used it without knowing what the "B" was for. Navy button-down jumper skirt, sleeveless with lining. It was lighter and thinner than wool, so it was easy to use. - Color: Navy - Design: Button-down jumper skirt - Style: Sleeveless - Features: No lining, one pocket on the side #entranceexam #private #national #schoolvisit #presentation #entranceceremony #enteringschool #graduationceremony #kindergartengraduation #MikiHouse #MIKI HOUSE Thank you for viewing.