It is reasonable to question the accuracy of this condiment set. The fish on the left just doesn't seem to belong. Does anyone else have this set to confirm? The shakers seem to have large and small three pour holes.
The central clam shell is the mustard pot. Both shakers do fit nicely into their respective holes within the condiment tray.
The condiment base is stamped in green "Maruri Made in Japan". Circa 1920s-40s.