The symbol on Yoshi’s mailbox in Super Mario World is the Japanese postal mark, 〒, that has been used for over 70 years to indicate mailboxes, post offices and other post-related things in Japan.
The symbol on Yoshi’s mailbox in Super Mario World is the Japanese postal mark, 〒, that has been used for over 70 years to indicate mailboxes, post offices and other post-related things in Japan.