Baldwin 0103.003 Colonial Door Knocker with Observ-o-scope, Lifetime Polished Brass Combined with its more than fifty years of commitment to making its products look better and last longer Baldwin has built its name and reputation on its attention to detail, quality, style and timeless good taste These are the reasons that Baldwin is recognized as the premier manufacturer of solid brass lock sets 6 1/2"H x 3 1/2"W Bolt CTC: 4" With observ-o-scope