Helen Keller’s biography of her life. Copyrighted in 1904. Helen Keller’s signature is in it, but I don’t know if it’s legit.
It was my dad’s and before that, it was his mother’s. I don’t know where she came across it.
Thank you for contacting Mearto with your appraisal inquiry.
The presented object appears to be the book "The Story Of My Life" by Helen Keller which was published by Grosset & Dunlop in New York. The signature on the frontispiece is a facsimile. I attach a comparable where you can see the identical writing on the frontispiece (https://www.liveauctioneers.com/item/4241131_717-helen-keller-signed-book-story-of-my-life).
This piece is in good condition and there is no serious damage visible in the images provided.
A fair market estimation would be between 40 to 80 USD.
This estimate is based on actual recent past recorded auction sales of comparable items. Retail "asking prices" can be higher and may vary.
With kind regards,