This effect was achieved by mixing different colored phenolic resins during the molding process. The bold red-and-black contrast was a signature of the Art Deco style.
Vintage - Art Deco Marbled Bakelite Bowl 5" - Dated 1931 Red Black Mottled - VG
3x Vintage French 1930s Art Deco Marbled Glass Lamp Light Stepped Shades Retro
Vintage Art Deco Red Black Marbled Bakelite Fruit Bowl Mottled Splatter 1930s
TESTED Vintage Bakelite Ashtray 513g Art Deco Marbled 6” Square 1” Thick
Vtg Art Deco marbled glass light shade 1930's : bell shaped white , orange 7"h
Art Deco marbled glass lampshade with a pink and opaque white spatter pattern