9/16″ LD-K-9 Knob — an exact copy of a specific period original, faithfully reproduced in solid cast brass for authentic historic character and heft. Each Londonderry knob is the finest reproduction in the world: detailed, true-to-scale casting and hand-finished to capture the original’s patina and feel. Ideal for interior doors, furniture, and restoration projects where authenticity matters. Cast to order to preserve craftsmanship and quality; typical lead time is roughly 4 weeks (this is an estimate, not a guaranteed ship date). Order your LD-K-9 Knob (SKU: LD-K-9) for a timeless, museum-quality replacement that provides both historic accuracy and lasting performance.