The design of this sewage manhole cover actually features a waste water treatment plant, alongside text that reads words "Koga" and "Osui (sewage)."


This small cover features a colorful design that depicts the flower of the city, the "Cosmos." The text visible in this sewage pipe handhole cover reads "Koga" and "Osui (sewage.)"


The emblem of the city sits in the center of this design and is surrounded by the flower of Koga-shi, the "Cosmos." The words "Koga-shi" and "Shuhai (drain)" can also be seen in this community storm drain/surface water drain cover.

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