Go to this page:
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And scroll to the bottom and look at the sign found in a Japanese commuter train. It designates who gets to sit in the seats below the sign.I'll post what the symbols are actually supposed to represent after we get a few guesses...
Oh, you might enjoy the other pictures, too. The Kato shop in Tokyo has lots of stuff which is hard to find here in the US. I bought Tsubame Shinkansen (Kyushu) and a JR Yamanote (Tokyo) commuter train models in N scale