Question & Answer Series 58 Boys and Girls Classics (Old)

Q: I have a copy of Autobiography of Benjamin Franklin see attachments.
The odd thing is the size of 6.25 X 4.25. Not the 6.50 X 4.25 that is prevalent.
There is not writing in the bottom space for the author, but this could because it is an autobiography.
An approximate date and is the size important?
Thank you for your time.

A: Your book is part of the Boys and Girls Classics Series.

It can be dated by noting the ads in the back of the book and reviewing the dating summary on the series’ webpage.

I have several volumes that are of the slightly smaller size. The ads in these variants indicate a 1903 publication.