This classic set is by Kenton Lock Company. The pattern was named "Royal", which is fitting - the beaded design appears on the doorplates, flat-faced doorknobs (front and back), and mortise lock faceplate. All of these handsome pieces are richly aged brass.
Doorknobs are 2 1/4" diameter; plates are 1 5/8" by 5 1/4". Mortise lock faceplate is 7/8" by 5 1/4"; backset is 2 3/8". Center to center is 2"; total box depth is 3 1/4" and height is 3 1/2".