Description : This heavy-duty vintage mortise lockset features two solid brass knobs with natural wear and patina, a complete green-body mortise lock, a brass faceplate, and a built-in key cylinder. The faceplate is clearly marked with an adjustable front bolt and inset locking mechanism. Its sturdy build and security-forward design make it well-suited for commercial restoration or retrofitting high-traffic residential entryways. Era: Mid-20th Century Style: Industrial / Institutional Technique: Machined brass and steel components with hand-assembled lock mechanism Tools Used: Milling machine, press drill, tap & die set, metal lathe History: Originally used in mid-century institutional or commercial doors where strength and security were essential. Manufacturer / Maker: Maker: Marked "Sargent" (visible on the lock faceplate) Measurements: 4" L × 7" W × 5¾" H Suggested Weight: ~4.5 lbs Suggested Shipping Package Dimension: 10" W × 8" D × 7" H Item Number : P14515 Category : Door Knobs Brand : UK