Both links contain great examples of late 1960s Polish animation. Poland was never a part of USSR.
Moreover, just like Czechoslovakia, Poland did not develop its animation style in a vacuum. They had strong artistic connections with many other European countries, especially France.
> They are unique and completely different from what the west was used to (Disney)
Not sure if you are an American... but Europe has a very old and very rich animation tradition. Growing up in Europe I was only vaguely familiar with Disney. The vast majority of animation I watched as a child was European.
Moreover, just like Czechoslovakia, Poland did not develop its animation style in a vacuum. They had strong artistic connections with many other European countries, especially France.
> They are unique and completely different from what the west was used to (Disney)
Not sure if you are an American... but Europe has a very old and very rich animation tradition. Growing up in Europe I was only vaguely familiar with Disney. The vast majority of animation I watched as a child was European.