ショ

signature, govt office, police station

JLPT2 G6 S13 F725

As per # (pile) + net → pile of public offices in a large building, likened to a net → (governmental) *office*; *workplace* → *assign*; *record*; *place* (an object) (← functions carried out in workplaces) → *signature* (← name recorded in its proper place).

[Full Kanji Etymology List]