series of plates designed as a test for colour-blindness
By: by Shinobu Ishihara.
Edition: 24 plates ed.
Publisher: Kanehara & Co
Published: 1981
Place of publication: Tokyo
Language: eng
Subjects: Color blindness.
Other titles: Ishihara's tests for colour-blindness.
Notes: Title on cover : Ishihara's tests for colour-blindness.

The plates are mounted on a folded strip of paper.

Explanatory booklet in pocket.