Series Number Security Label Sticker Two hologram stickers with matching serial numbers are commonly used to authenticate collectible merchandise and memorabilia. Typically, one sticker is used to authenticate the collectible product and the matching hologram sticker is used on a certificate of authenticity. When have series number, you will know which number is missing. Series Number Security Label Sticker,Security Label Stickers,Series Number Label Sticker,Series Number Security Sticker Shenzhen Tuteng Anti-Counterfeiting Co., Ltd. , https://www.holographicsticers.com