31 Vintage Hardy Boys Books # 1 then #9 through 38 1944 - 1973

This is a set of 31 different vintage Hardy Boys books.   They are from 1944 - 1973.  The books are #1 and #9 through #38.  They are all in good condition and some seem like they were never read. 
Number 13 was originally a library book and still has the pocket in the book and the sticker on the outside spine.  
Number 36 has a cracked spine.