Art Deco Streamline Moderne Desk Set

1. Description & Component Breakdown

• Base: Mounted on a thick slab of polished black Vitrolite (pigmented structural glass, often used in Art Deco architecture and luxury desk accessories to mimic black obsidian or create a high-gloss, mirror-like dark surface).
• Perpetual Calendar: Positioned centrally with a chromium-plated housing. The drums that display the month and date are turned/adjusted via the mechanical side knobs/screws to change the layout.
• Inkwells: Two teardrop- or bullet-shaped chrome housings featuring rolling dome (or roll-top) lids. Instead of a traditional external hinge, the curved lid sections use a concentric nested design that slides smoothly inward and under the housing when opened.
• Inserts: It retains its original fitted inner inserts made of molded plastic or early phenolic resin – a contrasting pair (one black, one red).
• Pen Rest / Holders: Twin streamlined chrome clips centered in front of the calendar to cradle a fountain pen or dip pen.

2. Maker & Origin

Sets of this style, featuring heavy black Vitrolite bases, teardrop chrome inkwells with roll-top or revolving dome lids, and integrated mechanical calendar units, were produced by manufacturers specializing in high-end Streamline Moderne and Art Deco office accessories.

Prominent makers of similar luxury chrome-and-glass desk suites include Ranleigh (known widely for their chrome and Vitrolite desktop groupings), as well as various mid-century continental European and British makers influenced by the Bauhaus and Machine Age aesthetics.

3. Era / Date

It is definitively Art Deco, dating from the 1930s to early 1940s (the height of the Streamline Moderne and Machine Age design movements, when chrome plating, sleek aerodynamic curves, and industrial plastics like Bakelite/phenolics were widely integrated into executive office luxury goods).