The Adams is a hardware chameleon that blends into many different settings, and changes character when combined with brass, porcelain, glass, or crystal cabinet knobs. Common in American homes since the turn of the century, its elegant simplicity has the classic look against which all other rosette sets are measured.With separate and optional keyholes or thumbturns, rosette-style door sets like the Adams, Cooper, Warren, and Randall (the Adams smaller 2 sibling) help with the challenges of putting new hardware on an existing door, where details like keyhole spacing and backset vary because of the old door's mortise latch, edge width, and so on. See more items from our Interior Door Sets category. Specifications Item # 3103 Finish Shown Burnished Antique Brass Doorknob Diameter 2.25" Keyhole Escutcheon 1.75 H x 1.875 W" Doorknob 2205 Crystal Doorknob Price As Shown Base Total $90.00 Grand Total $90.00