S.T. Dupont counterfeits, especially in lighters and accessories, are technically often very high-quality, which is why a missing serial number or precious-metal hallmark alone is no unambiguous authenticity indication; the 'Made in England' stamp is, however, unusual for a French brand and should be questioned. Since the model is to be found neither via Google nor in the official product database, it is likely an older or already discontinued variant. For verification, it is recommended to send photos directly to S.T. Dupont or to involve specialised accessories forums before a purchase in larger quantities.