What's the meaning of this symbol? © Wikimedia.org/Clemenspool, CC0 What's the meaning of this symbol? Do not smile Dogs should be carried Biometric facial recognition facility Line up or queue in threes 質問: 1/166 - スコア: 0/0 This symbol indicates a Biometric facial recognition facility and is part of the of the ISO 7001 (public information symbols). (Source: Wikipedia.org, CC BY-SA)
Dec 17, 2025
