19th century american victorian era ornamental cast bronze interior residential passage door escutcheon or doorknob rosette manufactured by the p. & f. corbin co., new britain, ct. the visually striking passage door rosette features a repeating palmette design motif around the outer perimeter, and a sunburst pattern surrounding the thimble or collar. black enameled inlay bolsters the visual impact. contains three screw holes for mounting purposes. measures approximately 2 1/4 inches in diameter.