This design shown in the 1879 Branford catalog page 646, 1886 catalog page 374 and 1893 catalog page 355 andin the 1876 Norwalk catalog page 417 page 428 shows knob and plate. As the Norwalk listing is only once it seems likely Norwalk sold the Branford knob.  The rose and escutcheon combined was only shown in the 1876 Norwalk catalog (page 422).