Duck lusterware condiment

We wanted to share this wonderful lusterware condiment set simply because of the oil and vinegar containers.  Notice the stoppers of the oil and vinegar are actually fish in the ducks' mouths.  This is a frequently missing piece of the condiment set as you can see in the other examples of this set in various colors.

The oil and vinegar containers are tall, standing about seven inches in height.  They are stamped Japan.  Circa 1950s.  They may all belong on a matching base - or they may not.