Mystery Steamship Cup and Saucer Made by Kido

Description

Here's another unknown flag on a cup and saucer from the estate of a man who piloted ships through the Panama Canal. Manufactured by Kido as marked on both pieces, they feature a flag in blue with 4 quadrants featuring boats of some kind and possibly a tree and fish. Hard to decipher.
The cup stands 2 1/2 inches tall and the saucer measures just over 6 inches in diameter. No chips or cracks on either piece but the house flag on the saucer is very worn on the bottom as you can see from the photo.
If you know which steamship company used this flag, feel free to message me.
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