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Image
Has Image
2
Non-Commercial Use
2
Category
Mathematics
1
Ophthalmology
1
Collection
Sir Henry Wellcome's Museum Collection
1
Maker
Lionel Sharples Penrose
1
Penrose, Roger; Penrose, Lionel Sharples
1
Roger Penrose
1
Object type
optical puzzle
2
model - representation
1
model - representation; optical puzzle
1
Place
England
1
England, United Kingdom
1
Europe
1
Material
complete
1
paper (fibre product)
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steel (metal)
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Date
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First models of the 'impossible triangle' and 'impossible staircase'
1955-1959
Optical illusion, Europe, 1850-1900
1850-1900
