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Optical illusion, Europe, 1850-1900

‘Fritz’ and ‘Paul’, or “Les 2 Piccolos”, are the names given to the two flat metal figures in this optical illusion from France. Whenever you put one next to the other, the piccolo in front always looks bigger despite them being the same size. It is unclear why this optical illusion was in Henry Wellcome’s medical collection. It may have been used as a diagnostic visual test to explore why people perceive the same thing differently.

Object number:

A680017

Related Themes and Topics

 

Glossary:

Glossary: optical puzzle

puzzle that is solved using an optical illusion