Although many have early copyright dates most, if not all, are editions from the 1930s-1940s. Publishers include Whitman, Saalfield, Goldsmith. Includes six Rover Boys titles: “On The Ocean”, “On Land And Sea”, “In Camp”, “On The Planes”, “In Southern Waters”, “On Treasure Isle”. Remaining titles include : “Bobby Blake At Rockledge School”, “The Boy Scouts On The Trail”, “Tom Slade Boy Scout”, “Tom Slade At Temple Camp”, “The Go Ahead Boys On Smugglers Island”, “The North Point Cabin Mystery”, “Helen In The Editor’s Chair”, “Polly In New York”, “The Outdoor Girls" group of three: including “At Cedar Ridge” and two volumes of the same title in different sizes of “In The Air”, “Peggy Parker Girl Inventor”, “Sylvia Sanders In The Tangled Web”, “The Walton Boys” and “Gold In The Snow”, “Trixie Belden And The Red Trailer Mystery”, “Ginny Gordon And The Mystery Of The Old Barn”. Dust jackets have scattered lt. wear here and there with a few missing pieces and small chips most noticeable on spines. Insides are clean and tight for the most part. Dust jackets overall VG/Fine. Books Fine/VF.