"name-plate-rack") is a Japanese method of displaying all the names of the members in a group by collecting the names on individual plaques called nafuda (名札, "nametag") and hanging them together in a specialized case called kake (掛け, "rack").
[5] Nafuda are thin, rectangular wooden plaques on which individuals’ names are written vertically in kanji or kana or horizontally in Latin script.
[21][22] The nafudakake may be placed in the shimoza (cosmological "south"—often the actual south wall) of a dojo, although it may also be located in other places such as the shimoseki (cosmological "west"), which in Daoist thought is representative of rectitude, or the proper relationship between members of the dojo.
[23][24] The joseki (cosmological "east") may also be used, and if the arts of more than one ryū (流) are taught in the same dojo, separate nafudakake for both schools may be displayed.
[26][27] The following example of a nafudakake is hanging on the west wall (shimoseki) of a Japanese aikido dojo.