I always thought the magnifying glass for search made sense as it was like a detective looking for clues. It is shown in the famous Cluedo board game [1] (aka

I always thought the magnifying glass for search made sense as it was like a detective looking for clues. It is shown in the famous Cluedo board game [1] (aka "Clue" in the USA). It's typically associated with forensics when looking for fingerprints. [1] https://upload.wikimedia.org/wikipedia/en/6/61/Cluedo_1956_Small_Red_Box_Edition.jpg https://upload.wikimedia.org/wikipedia/en/6/61/Cluedo_1956_S...