A button for MSX keyboard (Yamaha YIS805/YIS503)

This is a button protorype for MSX computer's keyboard. It doesn't have anything written on it, but a symbol can be put onto the button with a sticker. This particular button is BS (backspace) that will fit the keyboards of Yamaha YIS805, YIS503 or CX5M2 computers. It is also similar to functional keys and special keys used on YIS805's keyboard (STOP, INS, DEL, SELECT, CLS/HOME) With certain scaling it may be used as any other similar button on these keyboards.

UPDATE (April 21, 2019)
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