鶯張り (うぐいすばり) — nightingale (flooring); method of laying floors to deliberately make a noise (like a nightingale's call) when walked across (security feature)
鶯張り
う ぐ い す ば り
Nightingale (flooring); method of laying floors to deliberately make a noise (like a nightingale's call) when walked across (security feature)
画像検索

