
The book it protects is an 1895 reprint of Captain January by Laura E. Richards. Estes and Lauriat is the publisher . In a book writing career that included numerous popular children's books, this is perhaps Richards' most famous title. For a good biography see: http://readseries.com/auth-oz/richardsbio.html.
The corner protectors here were issued by DeWolfe and Fiske Company. In addition to being a publishing company of note, it also ran the Archway Bookstore.
It was there that this book was sold. This book however was not sold in 1895 despite the title page date.
In 1907 the Archway bookstore moved from 365 Washington Street to the Franklin Street address. Thus the corner protectors at their earliest are from 1907.
I believe that corner protectors from this era are much more difficult to find than dust jackets from the same years.