GA Series Pressed and Hand Ground
GB Series Pressed and Hand Ground
Ruby Pressed and Hand Ground
Clear Pressed and Hand Ground
Cobalt Pressed and Hand Ground
Amethyst Pressed and Hand Ground
Amber Pressed and Hand Ground
Emerald Pressed and Hand Ground
Milk Pressed and Hand Ground
Etched Pressed and Hand Ground
Black Pressed and Hand Ground
Ox-Blood Pressed and Hand Ground
Controlled Bubble Series Pressed and Hand Ground
Porcelain Door Knobs & Roses
Boston Pattern Silvered (Mercury) Glass Knob
Hardwood Door Knobs & Roses
GC Series Pressed and Hand Ground
GD Series Pressed and Hand Ground
GE Series Pressed and Hand Ground
GF Series Pressed and Hand Ground
GG Series Pressed and Hand Ground
GH Series Pressed and Hand Ground
GI Series Pressed and Hand Ground
GJ Series Pressed and Hand Ground
GK Series Pressed and Hand Ground
GL Series Pressed and Hand Ground
Opalescent Pressed and Hand Ground

The E. & G.W. Robinson Collection

Crystal Knobs and Escutcheons

E.R. Butler & Co. is pleased to offer the E. & G.W. Robinson collection of Early American pressed and hand-ground crystal door and cabinet knobs. For centuries crystal knobs have adorned doors, cabinets and drawers; their clarity and brilliance continue to suggest the “cleanliness, purity, refinement and good taste” for which they were valued in the nineteenth century.

E.R. Butler & Co., as the successor to E. & G.W. Robinson, continues to produce crystal knobs of superior design and workmanship. Our crystal knobs attach to their solid brass turned shanks with a technique patented by Enoch Robinson in 1837. With his “Method of Attaching Glass Knobs to Metallic Sockets” a denticulated knob is held in place by a keystoned socket. Our collection includes an historic variety of shapes, colors and sizes. Round, oval, octagonal or faceted knobs may have concave, flat or full surfaces. Crystal knobs may be clear, milk, opalescent, amber, ruby, ox-blood, amethyst, cobalt, emerald or black, as well as silvered or etched.

Knobs range in size from 2 14 and 1 34 inch diameter and projection for doors to 1 14 inch for cabinets and fine furniture. Shank types are available in many decorative finishes; all knobs are fully complemented by architectural trim including hinges, handles, locks, cane bolts, cylinder rings and covers, key escutcheons and covers, thumb turns, doorstops, etc.

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