Antique Japanese bronze Yatate Portable inkwell collection. One shaped like an antique gun, longest 7.5 Japanese Antique Yatate The Japanese yatate is defined as a relatively small, portable, case used to hold a Japanese writing brush (fude) and ink (sumi).
In old Japan, yatate were stashed in the obi (kimono belt) so that when one needed to jot down a quick note or letter, they could pull the yatate from their belt, remove the brush from the yatate handle, perhaps add a drop or two of water to the ink basin and start writing.