Q: I found this book (Treasure Island) at a yard sale. It has no date. I think it might be a Vandecum series. From Henry Altemus Company. In advertisement Folly in Fairyland is a new publication so I think it is around 1910. How much could I sell this for?
A: Your book is part of the Boys and Girls Classics Series. You can determine the date by looking at the ads and reviewing the information on the series page. See: Henry Altemus Company – Boys and Girls Classics (old) Series 58
It is a reprint and in only fair condition. Nominal value would be my guess.