Vintage 6 art deco silver plated butter knives

Vintage art deco Art Deco set of six silver plated bladed butter / tea knives with lovely sage green coloured smooth plastic celluloid material. These vintage knives are c 1920s / 1930s and are still bright and shiny. The bolsters have an interesting banded design. “EPNS” is clearly engraved on the silver-plate blades. The green is a lovely green tone. See photos Each butter / tea green handled knife is 6.5 inches long. They could use a little polishing