S.T. Dupont Ligne 1 – Gold Plated Vintage Gas Lighter – Fully Working – Switzerland. Description Elegant vintage S.T. Dupont Ligne 1 gas lighter, This example features a beautiful gold-plated finish with the classic guilloché (diamond head) pattern, giving it a timeless and luxurious appearance. The lighter is fully functional, producing a strong, consistent flame as shown in the photographs. Butane gas lighter Fully working condition Condition: Good vintage condition with light signs of age and use, including minor marks on the edges consistent with careful use over the years. Please examine all photographs carefully, as they form an integral part of the description. A fine collectible for S.T. Dupont enthusiasts and vintage lighter collectors, or an elegant luxury accessory for everyday use. The lighter will be shipped empty of gas, in accordance with international shipping regulations.