Brasenose College bought Brazenose House in 1890 to recover the original medieval brass Brazenose knocker. In the "Harry Potter" series, the character Albus Dumbledore has a griffin-shaped knocker. A "Hall Knocker" is a boggart who announces his or her existence by knocking. She had a recurring role on "Sea Patrol" portraying Commander Maxine "Knocker" White. Senator Thomas C. Desmond donated a period knocker. Fish Smart beat Knocker Carter in the final. Rick eats a knocker from one of the resident's houses, getting in trouble. The struck plate, if present, would be supplied and fitted with the knocker. When she asked who was there, the knocker identified himself as "Uncle Joe". The key to the family home could also be used as a knocker.