Wall chart printed on one side with Thorington test types for assessing visual acuity

Made:
1921-1940 in Philadelphia

Wall chart printed on one side with Thorington test types for assessing visual acuity, made by Wall and Ochs of Philadelphia, USA, 1921-1940

Details

Category:
Ophthalmology
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
A625240
Materials:
paper
type:
test types