Titan Exterior Door Set Mid-Century Modern Entry Set We had the exact door knob, but not metallic (in my old house), it was one of my favorite things about the house when I first saw it in SK.
These ornate geometric motifs can make your somewhat simple/spare midcentury door super stylish and chic.
Atlas door set by Rejuvenation
Modern Mid Century Door Knob With Midcentury Modern Samba Exterior Door Hardware In Unique Shape Design
Retro Renovation Breaking News: New midcentury modern Samba exterior door hardware from Rejuvenation - Retro Renovation
Mid Century STARBURST Vintage Door Plate Escutcheon Star New old Stock in Pack in Antiques, Architectural & Garden, Hardware, Escutcheons & Key Hole Covers