Lacquer

In modern techniques, lacquer means a range of clear or pigmented coatings that dry by solvent evaporation to produce a hard, durable finish. The finish can be of any sheen level from ultra matte to high gloss, and it can be further polished as required. Lacquer finishes are usually harder and more brittle than oil-based or latex paints, and are typically used on hard and smooth surfaces. Reference: Wikipedia

Black lacquer was especially popular during the Art Deco period and lacquered items ranged from clocks to desks.

Below are some examples and price guides of Art Deco lacquer items including a lacquer and enamel desk clock and a French Art Deco screen.