
1) Door opening, of a sort 2) Letter drop 3) Opening for letters
Found on
https://www.crosswordclues.com/clue/mailslot

A Mailslot is a one-way interprocess communication mechanism, available on the Microsoft Windows operating system, that allows communication between processes both locally and over a network. The use of Mailslots is generally simpler than named pipes or sockets when a relatively small number of relatively short messages are expected to be transmit...
Found on
http://en.wikipedia.org/wiki/MailSlot

The eight Dekarangers of Tokusou Sentai Dekaranger from a clips segment of GoGo Sentai Boukenger. Copyright Bandai, TV Asahi, and Toei Company. I, Ryūlóng, feel that this image can be used at Special Police Dekaranger because it is a low resolution screenshot that is only being used for educational purposes and does not affect the original copyr...
Found on
http://en.wikipedia.org/wiki/Mailslot
No exact match found.