This is a luxurious ballpoint pen from the renowned French brand S.T. Dupont, specifically from the classic Classique collection. This pen features the following details: Design: It has a metal body plated with yellow gold (Yellow Gold Plated) with finely engraved patterns that give it an elegant classic look. Brand: The pen clearly displays the engraved "S.T. Dupont PARIS" mark along with the brand's distinctive square logo. Origin: Original French manufacturing, and the 1980s and 1990s editions of this pen are considered rare pieces.