Jean Hoffler Farm animals

Today i found my animals which i played with as a child. There are some which i am curious about:





They are all marked "W. Germany" on the bottum. As you can see, they come in 2 colours: some are more yellowish, some more brownish. I am sure i or my brother got them as a gift from my parents, this means they bought them in the late 60's or in the 70's. Does anybody know which brand they are? Are they more common or more rare? I'm nor asking because i want to sell them: i don't! I got them for a long time and don't want to get rid of them. But i am very curious about them.

Those are Jean Hoffler " West-Germany" animals, made in the 60's and 70's as prime in different European country. There is a farm, a wild and a "wald" series.

Thanks very much!