The Georg Jensen 423 A mark appears on sterling silver pieces produced by the renowned Danish silversmith Georg Jensen. This mark includes the Jensen name and the pattern number “423 A,” which identifies a specific design and its variation within the company's catalog. The “A” suffix typically indicates a size or stylistic modification of the original 423 form. Known for their clean, sculptural lines and exceptional craftsmanship, Georg Jensen pieces are highly collectible. The 423 A mark helps verify authenticity, confirm design details, and establish the item’s place in the broader Jensen design archive.