Update: A new set has been found to this series! Dogs. That brings the series total to seven different sets. An odd number making it likely an eighth set exists.
Additional color variations of the birds have also been found (see bottom of page). Therefore we can assume the rest of the sets can likely be found in different colors.
This is a newly discovered vintage animal series consisting of colorful animals with flower eyes. A proper set appears to be a pair of similar colored animals with 3 and 2 pour holes.
Each set stands about 3.5-3.75” tall and is stamped “Japan”. Circa 1960s. So far only six different sets have been uncovered. It would not be surprising to find them in different colors as well.
New color variations of the birds: