What dress did Helen Keller wear?

Miss Keller was frequently photographed and did not (Look) like the popular idea of a Blind person. She did not use a Cane, wear Dark ( or other) glasses, or use the services of a seeing-Eye Dog. as many photos survive- there is evidence of her sartorial (clothing) style. Pretty modest , maybe what a secretary would wear in the Inter-war ( twenties and thirties) periodl. The absence of any handicap-aids gives one some pause.