This cast iron doorknocker is a Hubley castle design. It is marked number 631 on the back of the knocker and number 630 on the back of the backplate. The piece has its original polychrome paint. The paint has some chips but is in very good condition overall. The knocker appears to have seen little use. It dates to between the 1920's and early 1940's. This castle scene is one of the less common vintage doorknocker designs. This attractive piece would be great to use or display with a cast iron collection.