1-3/8″ LD-K-20 Knob — an exact copy of a specific period original, lovingly recreated in solid cast brass for authentic weight, feel, and detail. Part of our Londonderry Knobs collection, this hefty interior knob reproduces the historic profile and surface texture of the original piece, making it ideal for restoration projects, historic homes, or upscale interiors seeking genuine period character. These are the finest reproductions in the world—meticulously pattern‑cut and hand‑finished to match the original exactly. Each LD-K-20 is cast to order to preserve accuracy and quality; lead time is roughly 4 weeks (this is an estimate, not a guaranteed ship date). Choose a knob that delivers museum‑level authenticity and enduring performance—crafted for connoisseurs of true period detail.