Need help on book value

I have a book copyrighted 1908 titled Design and Construction of Induction Coils by A. Frederick Collins. First edition and is in decent condition. I cannot find a copy on any site to compare the price to.

Can anyone provide the approximate value of this book?

Thank you in advance.

 

It looks like this has been reprinted by several publishers. This happens to a lot of early technology books after they are old enough to be out of copyright protection. So, if anyone wants the information they can buy a new hardcover for $27-30, or a paperback for about $15.00.
I could not find a listing for an original 1908 copy, but I did find a number of other titles by the same author, dating from 1905-1920, listed on abebooks.com. He seems to have been rather prolific. The prices for original printings ranged between $8.50 - 20.00.