The series of plates designed as tests for colour-blindness
By: by Dr. Shinobu Ishihara ...
Edition: 7th ed. (complete ed.) 32 plates.
Publisher: Kanehara & co.
Published: 1936
Place of publication: Tokyo [etc.]
Language: eng
Number of pages: 24
Subjects: Color blindness.
Notes: The plates are mounted on a folded strip of heavy paper.
English, French and German.