一いっ対つい

noun, noun which may take the genitive case particle 'no'

pair; couple

Refers to a matched set of two items, often used for things that naturally come in pairs (e.g., vases, scrolls, statues). Can be used attributively with の.

• この一いっ対ついの花か瓶びんは江え戸ど時じ代だいのものだ。