11/16″ LD-K-4 Knob — an exact copy of a specific period original, faithfully reproduced in solid cast brass for authentic weight, detail, and presence. Part of our Londonderry Brasses collection, this compact yet hefty desk or interior knob delivers the look and feel of antique hardware with crisp mold detail and a rich finish option. These are the finest reproductions in the world, made for restorations, historic homes, and discerning designers who demand authenticity. Each LD-K-4 is cast to order to maintain museum-quality fidelity and consistent finish — lead time is roughly 4 weeks (this is an estimate, not a guaranteed ship date). SKU: LD-K-4. Order your exact-period reproduction today and bring proven craftsmanship and historical accuracy to your project.