This would be perfect for using as a stamp with ink or for stamping clay etc.
This stamp is the Kanji (Chinese character) for "錦" "nishiki" = "brocade, fine clothe, fine dress".
*Please check out the last picture!! The last picture (4th picture) shows hole? or empty space in this typewriter key. What you see is what you get.
It measures 2cm long (long enough to be able to get a nice grip) and 1.5cm wide. The Chinese character itself is about 1.5mm wide. It is made of metal.