geometric mid-century modern seamless pattern - 60`s and 70`s funky pattern with triangles, circles and abstract s

18x24 1960 1970 60s 70s abstract art artwork background black circle circles collection composition decor design fabric fashion funky geometric gray groovy hippie holiday home kaleidoscope midcentury minimal minimalist modern modernist monochrome ornament pattern pop poster postmodern print rectangle repetitive retro scandinavian seamless set seventies shapes simple sixties square textile trendy triangle triangles vector vintage wallpaper white xmas