14K A.T. Cross Company (USA) ​Model: Classic Century (Men's / Standard width size) Ballpoint Pen and Mechanical Pencil Set

Identification ​Maker: A.T. Cross Company (USA) ​Model: Classic Century (Men's / Standard width size) Ballpoint Pen and Mechanical Pencil Set ​Material/Finish: 1/20 14K Yellow Gold-Filled (also known as rolled gold) with a vertical line-engraved / striped pattern (often referred to in vintage Cross catalogs as 14K Gold-Filled or 1/20 14K GF). ​Details: The barrels feature the classic slim profile, conical top caps, and clips stamped with the Cross hallmark and gold purity indicators (typically marked 1/20 14K near the clips or center bands). One instrument is a twist-action ballpoint pen, and the matching partner is a twist-action mechanical pencil (usually taking 0.5mm or 0.9mm lead depending on the vintage production era). ​Market Value ​Vintage gold-filled Cross writing sets are prized for their timeless design and enduring mechanical build, though they were produced in high volumes, which keeps secondary market pricing accessible: ​Pre-Owned / Used Market Value (Loose): $50 to $90 (Depending on overall cosmetic condition, minor surface wear or micro-scratches, and whether the mechanical mechanisms and ink/lead components are fully functional.) ​Pre-Owned in Original Presentation Box: $75 to $130 (Sets that include the original hard-shell gift case and paperwork routinely command the higher end of secondary market resale platforms like eBay.) ​New-Old-Stock (NOS) / Mint in Box: $150 to $250+ ​Note on Gold Content: While housing a 14-karat gold exterior layer (1/20th of the metal weight by alloy standard), the core base metal is brass or base alloy. Therefore, the value is derived from its collectible and utility status as a writing instrument rather than its scrap gold melt weight, which is minimal.